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Please list the levels of the all courses taught by teacher no.79.

SELECT T1.courseLevel FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T2.p_id = 79

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Please list the levels of the all courses taught by teacher no.79.

Please list the IDs of the advisors of the students who are in the 5th year of their program.

SELECT T1.p_id_dummy FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.yearsInProgram = 'Year_5'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Please list the IDs of the advisors of the students who are in the 5th year of their program.

How many students are advised to teach by a professor teaching basic or medium undergraduate courses?

SELECT COUNT(DISTINCT T4.p_id) FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id INNER JOIN advisedBy AS T4 ON T4.p_id = T1.p_id WHERE T1.professor = 1 AND T3.courseLevel = 'Level_300'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many students are advised to teach by a professor teaching basic or medium undergraduate courses?

Among the courses that are basic or medium undergraduate courses, how many of them are taught by a faculty member?

SELECT COUNT(*) FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id INNER JOIN person AS T3 ON T2.p_id = T3.p_id WHERE T3.professor = 1 AND T1.courseLevel = 'Level_300'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Among the courses that are basic or medium undergraduate courses, how many of them are taught by a faculty member?

For the professor who advised student no.6, please list the IDs of the courses he or she teaches.

SELECT T2.course_id FROM taughtBy AS T1 INNER JOIN course AS T2 ON T1.course_id = T2.course_id INNER JOIN advisedBy AS T3 ON T3.p_id = T1.p_id WHERE T1.p_id = 9

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # For the professor who advised student no.6, please list the IDs of the courses he or she teaches.

What is the level of the course with the most number of teachers?

SELECT T1.courseLevel FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id GROUP BY T2.course_id ORDER BY COUNT(T2.p_id) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the level of the course with the most number of teachers?

Please list the IDs of the professors that teaches more than 3 courses.

SELECT T1.p_id FROM taughtBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.professor = 1 GROUP BY T1.p_id HAVING COUNT(DISTINCT T1.course_id) > 3

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Please list the IDs of the professors that teaches more than 3 courses.

Please list the IDs of the top 3 professors that teaches the most courses.

SELECT T1.p_id FROM taughtBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.professor = 1 GROUP BY T1.p_id ORDER BY COUNT(*) DESC LIMIT 3

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Please list the IDs of the top 3 professors that teaches the most courses.

In total, all the students in the 3rd year of their program are advised by how many professors?

SELECT COUNT(DISTINCT T1.p_id_dummy) FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.yearsInProgram = 'Year_3'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # In total, all the students in the 3rd year of their program are advised by how many professors?

What is the average number of courses taught by a professor?

SELECT CAST(COUNT(T1.course_id) AS REAL) / COUNT(DISTINCT T2.p_id) AS num FROM taughtBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.professor = 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the average number of courses taught by a professor?

What is the ratio of professors and students?

SELECT CAST(SUM(CASE WHEN professor = 1 THEN 1 ELSE 0 END) AS REAL) * 100 / SUM(CASE WHEN student = 1 THEN 1 ELSE 0 END) AS per FROM person

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the ratio of professors and students?

Calculate the percentage of high-level undergraduate course.

SELECT CAST(SUM(CASE WHEN courseLevel = 'Level_400' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(*) AS per FROM course

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Calculate the percentage of high-level undergraduate course.

List down all the person IDs who taught course ID of 18.

SELECT p_id FROM taughtBy WHERE course_id = 18

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List down all the person IDs who taught course ID of 18.

Provide the position status and IDs of professor who advised student ID "303".

SELECT T2.hasPosition, T1.p_id_dummy FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id_dummy = T2.p_id WHERE T1.p_id = 303

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Provide the position status and IDs of professor who advised student ID "303".

List the person IDs and course levels of the affiliated professors in faculty.

SELECT T1.p_id, T3.courseLevel FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id WHERE T1.hasPosition = 'Faculty_aff'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List the person IDs and course levels of the affiliated professors in faculty.

Describe the year in program and in phase status for the student with most number in advisor.

SELECT T2.yearsInProgram, T2.inPhase FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id GROUP BY T1.p_id ORDER BY COUNT(*) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Describe the year in program and in phase status for the student with most number in advisor.

List down the advised student IDs and IDs of employing professor in faculty.

SELECT T1.p_id, T2.p_id FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id_dummy = T2.p_id WHERE hasPosition = 'Faculty_eme'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List down the advised student IDs and IDs of employing professor in faculty.

List the course IDs and levels of person IDs from 40 to 50.

SELECT T1.course_id, T1.courseLevel FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T2.p_id BETWEEN 40 AND 50

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List the course IDs and levels of person IDs from 40 to 50.

Describe the course level and list of person IDs who taught course ID of 147.

SELECT T1.courseLevel, T1.course_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T2.p_id = 141

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Describe the course level and list of person IDs who taught course ID of 147.

Mention the person ID of faculty professor who taught course ID 104 and the course level.

SELECT T1.p_id, T3.courseLevel FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id WHERE T3.course_id = 104 AND T1.hasPosition <> 0

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Mention the person ID of faculty professor who taught course ID 104 and the course level.

Find the professor ID and position in faculty who taught high-level undergraduate course of less than 10 in ID.

SELECT T1.p_id, T1.hasPosition FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id WHERE T3.courseLevel = 'Level_400' AND T2.course_id < 10

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Find the professor ID and position in faculty who taught high-level undergraduate course of less than 10 in ID.

List the professor ID who taught the course ID from 121 to 130 of basic undergraduate courses.

SELECT T2.p_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_300' AND T1.course_id > 121 AND T1.course_id < 130

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List the professor ID who taught the course ID from 121 to 130 of basic undergraduate courses.

List the advisor IDs for students with eighth year of program and position status in faculty of those professors.

SELECT T1.p_id_dummy, T2.hasPosition FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.yearsInProgram = 'Year_8'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List the advisor IDs for students with eighth year of program and position status in faculty of those professors.

List any five of course IDs with professor IDs who taught master courses.

SELECT T1.course_id, T2.p_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_500' LIMIT 5

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # List any five of course IDs with professor IDs who taught master courses.

How many students are under advisor 415?

SELECT COUNT(*) FROM advisedBy WHERE p_id_dummy = 415

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many students are under advisor 415?

How many professional or master/graduate courses are there?

SELECT COUNT(*) FROM course WHERE courseLevel = 'Level_500'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many professional or master/graduate courses are there?

How many non-faculty members are not undergoing the phase of qualifications?

SELECT COUNT(*) FROM person WHERE hasPosition = 0 AND inPhase = 0

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many non-faculty members are not undergoing the phase of qualifications?

Which professor taught the least amount of courses?

SELECT p_id FROM taughtBy GROUP BY p_id ORDER BY COUNT(course_id) ASC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Which professor taught the least amount of courses?

Among the students being advised by Advisor 5, how many students are in the 5th year?

SELECT COUNT(*) FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T1.p_id_dummy = 5 AND T2.student = 1 AND T2.yearsInProgram = 'Year_5'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Among the students being advised by Advisor 5, how many students are in the 5th year?

Which professor teaches the highest number of professional or master/graduate courses?

SELECT T2.p_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_500' GROUP BY T2.p_id ORDER BY COUNT(T2.course_id) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Which professor teaches the highest number of professional or master/graduate courses?

Among the faculty affiliated professor, how many professors teaches professional or master/undergraduate courses?

SELECT COUNT(*) FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id WHERE T1.hasPosition = 'Faculty_aff' AND T1.professor = 1 AND T3.courseLevel = 'Level_500'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Among the faculty affiliated professor, how many professors teaches professional or master/undergraduate courses?

Who are the top 5 professors who teaches the highest number of professional or master/undergraduate courses?

SELECT T2.p_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_500' GROUP BY T2.p_id ORDER BY COUNT(T2.p_id) DESC LIMIT 5

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Who are the top 5 professors who teaches the highest number of professional or master/undergraduate courses?

How many advisors are in charge of advising all the students in 1st year?

SELECT COUNT(T1.p_id_dummy) FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.yearsInProgram = 'Year_1' AND T2.student = 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many advisors are in charge of advising all the students in 1st year?

How many professors teaches no more than two high-level or harder undergraduate courses?

SELECT COUNT(*) FROM ( SELECT COUNT(T2.p_id) FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_400' GROUP BY T2.p_id HAVING COUNT(DISTINCT T1.course_id) <= 2 )

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many professors teaches no more than two high-level or harder undergraduate courses?

Between the faculty employee professors, how many teaches high-level or harder undergraduate courses? Indicate each of the professors unique identifying number.

SELECT COUNT(*) FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id WHERE T1.hasPosition = 'Faculty_eme' AND T1.professor = 1 AND T3.courseLevel = 'Level_400'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Between the faculty employee professors, how many teaches high-level or harder undergraduate courses? Indicate each of the professors unique identifying number.

What is the position in the faculty of the professor who teaches the highest number of courses?

SELECT T1.hasPosition FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id WHERE T1.professor = 1 GROUP BY T1.p_id ORDER BY COUNT(T2.course_id) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the position in the faculty of the professor who teaches the highest number of courses?

What year in the program do the students with more than 2 advisors are in?

SELECT T2.yearsInProgram FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.student = 1 GROUP BY T2.p_id HAVING COUNT(T2.p_id) > 2

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What year in the program do the students with more than 2 advisors are in?

How many professors teaches basic or medium undergraduate courses?

SELECT COUNT(*) FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_300'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many professors teaches basic or medium undergraduate courses?

Among the students being advised by advisors, which students' year in the program do the advisors advise the majority of?

SELECT T2.yearsInProgram FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.student = 1 GROUP BY T2.yearsInProgram ORDER BY COUNT(T1.p_id_dummy) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Among the students being advised by advisors, which students' year in the program do the advisors advise the majority of?

How many students that are undergoing the pre-phase of qualification have advisors?

SELECT COUNT(T1.p_id_dummy) FROM advisedBy AS T1 INNER JOIN person AS T2 ON T1.p_id = T2.p_id WHERE T2.inPhase = 'Pre_Quals' AND T2.student = 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many students that are undergoing the pre-phase of qualification have advisors?

What is the average number of professional or master/undergraduate courses being taught by each professor?

SELECT CAST(COUNT(T1.course_id) AS REAL) / COUNT(DISTINCT T2.p_id) FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T1.courseLevel = 'Level_500'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the average number of professional or master/undergraduate courses being taught by each professor?

How many courses were taught by more than 4 people?

SELECT COUNT(*) FROM ( SELECT COUNT(course_id) FROM taughtBy GROUP BY course_id HAVING COUNT(course_id) > 4 )

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many courses were taught by more than 4 people?

What is the total of professional courses available at the university? List out all the course id.

SELECT COUNT(course_id) FROM course WHERE courseLevel = 'Level_500'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the total of professional courses available at the university? List out all the course id.

What is the sum of year 1 and year 2 students?

SELECT COUNT(*) FROM person WHERE yearsInProgram = 'Year_1' OR yearsInProgram = 'Year_2'

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # What is the sum of year 1 and year 2 students?

How many courses were taught by a professor who is currently the member of faculty?

SELECT COUNT(*) FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id WHERE T1.professor = 1 AND T1.hasPosition <> 0

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # How many courses were taught by a professor who is currently the member of faculty?

Which professor taught the most courses and what is the position of this person in the university?

SELECT T1.p_id, T1.hasPosition FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id GROUP BY T1.p_id ORDER BY COUNT(T2.course_id) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Which professor taught the most courses and what is the position of this person in the university?

Which courses were taught by a professor who is not a faculty member?

SELECT DISTINCT T2.course_id FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id WHERE T1.professor = 1 AND T1.hasPosition = 0

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Which courses were taught by a professor who is not a faculty member?

Which member of the faculty are teaching the most courses and what is his/her general course level?

SELECT T1.p_id, T3.courseLevel FROM person AS T1 INNER JOIN taughtBy AS T2 ON T1.p_id = T2.p_id INNER JOIN course AS T3 ON T3.course_id = T2.course_id GROUP BY T1.p_id ORDER BY COUNT(T2.course_id) DESC LIMIT 1

computer_student

Database Schema: advisedBy (p_id integer, p_id_dummy integer, , PRIMARY KEY(p_id), PRIMARY KEY(p_id_dummy), FOREIGN KEY(p_id) REFERENCES person(p_id), FOREIGN KEY(p_id_dummy) REFERENCES person(p_id)) #course (course_id integer, courseLevel text, , PRIMARY KEY(course_id), ) #person (p_id integer, professor integer, student integer, hasPosition text, inPhase text, yearsInProgram text, , PRIMARY KEY(p_id), ) #taughtBy (course_id integer, p_id integer, , PRIMARY KEY(course_id), PRIMARY KEY(p_id), FOREIGN KEY(course_id) REFERENCES course(course_id), FOREIGN KEY(p_id) REFERENCES person(p_id)) # Which member of the faculty are teaching the most courses and what is his/her general course level?

What is the device id of the oldest user?

SELECT device_id FROM gender_age WHERE age = ( SELECT MAX(age) FROM gender_age )

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the device id of the oldest user?

How many events were held at coordinate 97,40?

SELECT COUNT(event_id) FROM `events` WHERE latitude = 40 AND longitude = 97

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many events were held at coordinate 97,40?

How many male users are in the age group of M32-38?

SELECT COUNT(gender) FROM gender_age WHERE gender = 'M' AND `group` = 'M32-38'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many male users are in the age group of M32-38?

How many female users over the age of 50 are there?

SELECT COUNT(gender) FROM gender_age WHERE age > 50 AND gender = 'F'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many female users over the age of 50 are there?

How many active users were there in the event id 2?

SELECT COUNT(is_active) FROM app_events WHERE event_id = 2 AND is_active = 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many active users were there in the event id 2?

What is the gender of the youngest user?

SELECT gender FROM gender_age WHERE age = ( SELECT MIN(age) FROM gender_age )

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the gender of the youngest user?

What is the name of the category which most users belong to?

SELECT T.category FROM ( SELECT T2.category, COUNT(T1.app_id) AS num FROM app_labels AS T1 INNER JOIN label_categories AS T2 ON T2.label_id = T1.label_id GROUP BY T1.app_id, T2.category ) AS T ORDER BY T.num DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the name of the category which most users belong to?

What is the model of the oldest user's device?

SELECT T1.device_model FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id ORDER BY T2.age DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the model of the oldest user's device?

How many users are there in the Home Decoration category?

SELECT COUNT(T1.app_id) FROM app_labels AS T1 INNER JOIN label_categories AS T2 ON T2.label_id = T1.label_id WHERE T2.category = 'Home Decoration'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many users are there in the Home Decoration category?

How many male users are active in the events held on 5/1/2016?

SELECT COUNT(T3.gender) FROM app_events AS T1 INNER JOIN events_relevant AS T2 ON T2.event_id = T1.event_id INNER JOIN gender_age AS T3 ON T3.device_id = T2.device_id WHERE T1.is_active = 1 AND T3.gender = 'M' AND T2.timestamp LIKE '2016-05-01%'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many male users are active in the events held on 5/1/2016?

How many female users use ZenFone 5 devices?

SELECT COUNT(T1.gender) FROM gender_age AS T1 INNER JOIN phone_brand_device_model2 AS T2 ON T2.device_id = T1.device_id WHERE T1.gender = 'F' AND T2.device_model = 'ZenFone 5'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many female users use ZenFone 5 devices?

What is the age of the oldest active user that participated in the event held on 5/6/2016 at coordinates 121, 31?

SELECT T3.age FROM app_events AS T1 INNER JOIN events_relevant AS T2 ON T1.event_id = T2.event_id INNER JOIN gender_age AS T3 ON T2.device_id = T3.device_id WHERE T1.is_active = 1 AND T2.longitude = 121 AND T2.latitude = 31 AND SUBSTR(T2.timestamp, 1, 10) = '2016-05-06' ORDER BY T3.age DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the age of the oldest active user that participated in the event held on 5/6/2016 at coordinates 121, 31?

What is the most common device model among female users between the ages 27 to 28?

SELECT T2.device_model FROM gender_age AS T1 INNER JOIN phone_brand_device_model2 AS T2 ON T1.device_id = T2.device_id WHERE T1.`group` = 'F27-28' AND T1.gender = 'F' ORDER BY T2.device_id DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the most common device model among female users between the ages 27 to 28?

What are the categories of the top 2 oldest events?

SELECT T4.category FROM events_relevant AS T1 INNER JOIN app_events_relevant AS T2 ON T1.event_id = T2.event_id INNER JOIN app_labels AS T3 ON T3.app_id = T2.app_id INNER JOIN label_categories AS T4 ON T3.label_id = T4.label_id ORDER BY T1.timestamp LIMIT 2

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What are the categories of the top 2 oldest events?

What is the gender of the majority of Vivo phone users?

SELECT T.gender FROM ( SELECT T2.gender, COUNT(T2.gender) AS num FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'vivo' GROUP BY T2.gender ) AS T ORDER BY T.num DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the gender of the majority of Vivo phone users?

Which category has the highest number of users?

SELECT T.category FROM ( SELECT T2.category, COUNT(T1.app_id) AS num FROM app_labels AS T1 INNER JOIN label_categories AS T2 ON T2.label_id = T1.label_id GROUP BY T1.app_id, T2.category ) AS T ORDER BY T.num DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Which category has the highest number of users?

How many users belong to the MOBA category?

SELECT COUNT(T2.app_id) FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T2.label_id = T1.label_id WHERE T1.category = 'MOBA'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many users belong to the MOBA category?

What is the percentage of female OPPO users against the male OPPO users?

SELECT SUM(IIF(T2.gender = 'F', 1, 0)) * 100 / COUNT(T2.device_id) AS perFemale , SUM(IIF(T2.gender = 'M', 1, 0)) * 100 / COUNT(T2.device_id) AS perMale FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'OPPO'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the percentage of female OPPO users against the male OPPO users?

What were the locations of the events on 8th May, 2016?

SELECT longitude, latitude FROM `events` WHERE SUBSTR(`timestamp`, 1, 10) = '2016-05-08'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What were the locations of the events on 8th May, 2016?

List the app users IDs and installed status for the event ID of 844.

SELECT app_id , IIF(is_installed = 1, 'YES', 'NO') AS status FROM app_events WHERE event_id = 844

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # List the app users IDs and installed status for the event ID of 844.

How many events were there on 30th April, 2016?

SELECT COUNT(event_id) FROM events WHERE SUBSTR(`timestamp`, 1, 10) = '2016-04-30'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many events were there on 30th April, 2016?

How many users used Vivo Xplay3S model?

SELECT COUNT(device_id) FROM phone_brand_device_model2 WHERE device_model = 'Xplay3S' AND phone_brand = 'vivo'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many users used Vivo Xplay3S model?

What is the ratio of male and female users in 27-28 age group?

SELECT SUM(IIF(gender = 'M' AND `group` = 'M27-28', 1, 0)) / SUM(IIF(gender = 'F' AND `group` = 'F27-28', 1, 0)) AS r FROM gender_age

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the ratio of male and female users in 27-28 age group?

What are the labels' IDs of online shopping and online malls categories?

SELECT label_id FROM label_categories WHERE category IN ('online shopping', 'online malls')

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What are the labels' IDs of online shopping and online malls categories?

Describe the phone brands and models of the users who participated in events on 5th May, 2016 at the coordinates of (112,44).

SELECT DISTINCT T2.phone_brand, T2.device_model FROM events AS T1 INNER JOIN phone_brand_device_model2 AS T2 ON T2.device_id = T1.device_id WHERE T1.timestamp LIKE '2016-05-05%' AND T1.longitude = 112 AND T1.latitude = 44

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Describe the phone brands and models of the users who participated in events on 5th May, 2016 at the coordinates of (112,44).

Provide the app users IDs and time for the event ID of 82.

SELECT T1.app_id, T2.timestamp FROM app_events AS T1 INNER JOIN events AS T2 ON T2.event_id = T1.event_id WHERE T2.event_id = 82

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Provide the app users IDs and time for the event ID of 82.

Describe the device user gender and age of the event ID of 15251.

SELECT T1.gender, T1.age FROM gender_age AS T1 INNER JOIN events AS T2 ON T2.device_id = T1.device_id WHERE T2.event_id = 15251

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Describe the device user gender and age of the event ID of 15251.

How many events did the 88-years-old male users participate on 4th May,2016?

SELECT COUNT(T2.event_id) FROM gender_age AS T1 INNER JOIN events AS T2 ON T2.device_id = T1.device_id WHERE T1.gender = 'M' AND SUBSTR(`timestamp`, 1, 10) = '2016-05-04' AND T1.age = 88

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many events did the 88-years-old male users participate on 4th May,2016?

Describe the ages, genders and numbers of events participated by the users at coordinates of (-102,38).

SELECT DISTINCT T1.age, T1.gender, COUNT(T2.event_id) FROM gender_age AS T1 INNER JOIN `events` AS T2 ON T2.device_id = T1.device_id WHERE T2.longitude = -102 AND T2.latitude = 38 GROUP BY T1.age, T1.gender, T2.longitude, T2.latitude

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Describe the ages, genders and numbers of events participated by the users at coordinates of (-102,38).

Provide the phone brands and models of the users who were at the coordinates of (80,44).

SELECT DISTINCT T1.phone_brand, T1.device_model FROM phone_brand_device_model2 AS T1 INNER JOIN events AS T2 ON T2.device_id = T1.device_id WHERE T2.longitude = 80 AND T2.latitude = 44

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Provide the phone brands and models of the users who were at the coordinates of (80,44).

List the included categories in the event ID of 155.

SELECT DISTINCT T1.category FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T2.label_id = T1.label_id INNER JOIN app_events AS T3 ON T3.app_id = T2.app_id WHERE T3.event_id = 155

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # List the included categories in the event ID of 155.

Among HTC Butterfly phone users, list any five devices' IDs used by females.

SELECT T2.device_id FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.device_model = 'Butterfly' AND T2.gender = 'F' AND T1.phone_brand = 'HTC' LIMIT 5

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Among HTC Butterfly phone users, list any five devices' IDs used by females.

How many app IDs were included under science fiction category?

SELECT COUNT(T2.app_id) FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T2.label_id = T1.label_id WHERE T1.category = 'science fiction'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many app IDs were included under science fiction category?

What are the ages and genders of the LG L70 users?

SELECT T2.age, T2.gender FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'LG' AND T1.device_model = 'L70'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What are the ages and genders of the LG L70 users?

Calculate the percentage of the app user IDs under Industry tag category.

SELECT SUM(IIF(T1.category = 'Industry tag', 1, 0)) * 100 / COUNT(T2.app_id) AS per FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T2.label_id = T1.label_id

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Calculate the percentage of the app user IDs under Industry tag category.

Among the LG brand users, calculate the percentage of the Nexus 5 model user. What is the ratio of male and female users of it?

SELECT SUM(IIF(T1.device_model = 'Nexus 5', 1, 0)) * 100 / COUNT(T1.device_id) AS per , SUM(IIF(T1.device_model = 'Nexus 5' AND T2.gender = 'M', 1, 0)) / SUM(IIF(T1.device_model = 'Nexus 5' AND T2.gender = 'F', 1, 0)) AS r FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'LG'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Among the LG brand users, calculate the percentage of the Nexus 5 model user. What is the ratio of male and female users of it?

How many users of the app were not active when event no.2 happened?

SELECT COUNT(event_id) FROM app_events WHERE event_id = 2 AND is_active = 0

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many users of the app were not active when event no.2 happened?

How many events in total have happened on the devices in 2016?

SELECT COUNT(event_id) FROM `events` WHERE SUBSTR(`timestamp`, 1, 4) = '2016'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many events in total have happened on the devices in 2016?

How many events have happened on device no.29182687948017100 in 2016?

SELECT COUNT(event_id) FROM `events` WHERE SUBSTR(`timestamp`, 1, 4) = '2016' AND device_id = 29182687948017100

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many events have happened on device no.29182687948017100 in 2016?

How many device users are male?

SELECT COUNT(device_id) FROM gender_age WHERE gender = 'M'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many device users are male?

What is the age of the oldest device user?

SELECT MAX(age) FROM gender_age

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the age of the oldest device user?

Among the female users of the devices, how many of them are under 30?

SELECT COUNT(device_id) FROM gender_age WHERE age < 30 AND gender = 'F'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Among the female users of the devices, how many of them are under 30?

Among the users who use a Galaxy Note 2, how many of them are female?

SELECT COUNT(T1.device_id) FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T2.gender = 'F' AND T1.device_model = 'Galaxy Note 2'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Among the users who use a Galaxy Note 2, how many of them are female?

Please list the ages of all the users who use a Galaxy Note 2.

SELECT T2.age FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.device_model = 'Galaxy Note 2'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Please list the ages of all the users who use a Galaxy Note 2.

What is the device model of the device used by the oldest user?

SELECT device_model FROM phone_brand_device_model2 WHERE device_id IN ( SELECT device_id FROM gender_age WHERE age = ( SELECT MAX(age) FROM gender_age ) )

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # What is the device model of the device used by the oldest user?

To which user group do most of the users who uses a vivo device belong?

SELECT T.`group` FROM ( SELECT T2.`group`, COUNT(`group`) AS num FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'vivo' GROUP BY T2.`group` ) AS T ORDER BY T.num DESC LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # To which user group do most of the users who uses a vivo device belong?

How many app users belong to the category of Securities?

SELECT COUNT(T1.app_id) FROM app_labels AS T1 INNER JOIN label_categories AS T2 ON T2.label_id = T1.label_id WHERE T2.category = 'Securities'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # How many app users belong to the category of Securities?

To which categories does app user no.1977658975649780000 belong?

SELECT T1.category FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T1.label_id = T2.label_id WHERE T2.app_id = 1977658975649780000

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # To which categories does app user no.1977658975649780000 belong?

Please list the categories of the app users who are not active when event no.2 happened.

SELECT DISTINCT T1.category FROM label_categories AS T1 INNER JOIN app_labels AS T2 ON T1.label_id = T2.label_id INNER JOIN app_events AS T3 ON T2.app_id = T3.app_id WHERE T3.event_id = 2 AND T3.is_active = 0

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Please list the categories of the app users who are not active when event no.2 happened.

Please list the location coordinates of all the devices with an inactive app user when event no.2 happened.

SELECT DISTINCT T2.longitude, T2.latitude FROM app_events AS T1 INNER JOIN events AS T2 ON T2.event_id = T1.event_id WHERE T2.event_id = 2 AND T1.is_active = 0

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Please list the location coordinates of all the devices with an inactive app user when event no.2 happened.

Among all the times event no.2 happened when the app user was not active, when was the earliest time this situation happened?

SELECT T2.timestamp FROM app_events AS T1 INNER JOIN events AS T2 ON T2.event_id = T1.event_id WHERE T1.is_active = 0 AND T2.event_id = 2 ORDER BY T2.timestamp LIMIT 1

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Among all the times event no.2 happened when the app user was not active, when was the earliest time this situation happened?

Please list the IDs of the events happened on all the vivo devices.

SELECT T2.event_id FROM phone_brand_device_model2 AS T1 INNER JOIN events AS T2 ON T2.device_id = T1.device_id WHERE T1.phone_brand = 'vivo'

talkingdata

Database Schema: app_all (app_id integer, , PRIMARY KEY(app_id), ) #app_events (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events(event_id)) #app_events_relevant (event_id integer, app_id integer, is_installed integer, is_active integer, , PRIMARY KEY(event_id), PRIMARY KEY(app_id), FOREIGN KEY(event_id) REFERENCES events_relevant(event_id), FOREIGN KEY(app_id) REFERENCES app_all(app_id)) #app_labels (app_id integer, label_id integer, , , FOREIGN KEY(app_id) REFERENCES app_all(app_id), FOREIGN KEY(label_id) REFERENCES label_categories(label_id)) #events (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), ) #events_relevant (event_id integer, device_id integer, timestamp datetime, longitude real, latitude real, , PRIMARY KEY(event_id), FOREIGN KEY(device_id) REFERENCES gender_age(device_id)) #gender_age (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), FOREIGN KEY(device_id) REFERENCES phone_brand_device_model2(device_id)) #gender_age_test (device_id integer, , PRIMARY KEY(device_id), ) #gender_age_train (device_id integer, gender text, age integer, group text, , PRIMARY KEY(device_id), ) #label_categories (label_id integer, category text, , PRIMARY KEY(label_id), ) #phone_brand_device_model2 (device_id integer, phone_brand text, device_model text, , PRIMARY KEY(device_id), PRIMARY KEY(phone_brand), PRIMARY KEY(device_model), ) #sample_submission (device_id integer, F23- real, F24-26 real, F27-28 real, F29-32 real, F33-42 real, F43+ real, M22- real, M23-26 real, M27-28 real, M29-31 real, M32-38 real, M39+ real, , PRIMARY KEY(device_id), ) # Please list the IDs of the events happened on all the vivo devices.