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stringlengths 236
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-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many different types of sports do we offer?
| SELECT count(DISTINCT sportname) FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many students play sports?
| SELECT count(DISTINCT StuID) FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many different students are involved in sports?
| SELECT count(DISTINCT StuID) FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- List ids for all student who are on scholarship.
| SELECT StuID FROM Sportsinfo WHERE onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids for all sporty students who are on scholarship?
| SELECT StuID FROM Sportsinfo WHERE onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show last names for all student who are on scholarship.
| SELECT T2.Lname FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T1.onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the last names for all scholarship students?
| SELECT T2.Lname FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T1.onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many games are played for all students?
| SELECT sum(gamesplayed) FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the total number of games played?
| SELECT sum(gamesplayed) FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many games are played for all football games by students on scholarship?
| SELECT sum(gamesplayed) FROM Sportsinfo WHERE sportname = "Football" AND onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the total number of all football games played by scholarship students?
| SELECT sum(gamesplayed) FROM Sportsinfo WHERE sportname = "Football" AND onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all sport name and the number of students.
| SELECT sportname , count(*) FROM Sportsinfo GROUP BY sportname; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many students play each sport?
| SELECT sportname , count(*) FROM Sportsinfo GROUP BY sportname; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all student IDs with the number of sports and total number of games played
| SELECT StuID , count(*) , sum(gamesplayed) FROM Sportsinfo GROUP BY StuID; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all students along with how many sports and games did they play?
| SELECT StuID , count(*) , sum(gamesplayed) FROM Sportsinfo GROUP BY StuID; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all student IDs with more than total 10 hours per week on all sports played.
| SELECT StuID FROM Sportsinfo GROUP BY StuID HAVING sum(hoursperweek) > 10; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the student IDs for everybody who worked for more than 10 hours per week on all sports?
| SELECT StuID FROM Sportsinfo GROUP BY StuID HAVING sum(hoursperweek) > 10; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the first name and last name of the student who have most number of sports?
| SELECT T2.Fname , T2.Lname FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID GROUP BY T1.StuID ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the first and last name of the student who played the most sports?
| SELECT T2.Fname , T2.Lname FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID GROUP BY T1.StuID ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Which sport has most number of students on scholarship?
| SELECT sportname FROM Sportsinfo WHERE onscholarship = 'Y' GROUP BY sportname ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the sport with the most scholarship students?
| SELECT sportname FROM Sportsinfo WHERE onscholarship = 'Y' GROUP BY sportname ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show student ids who don't have any sports.
| SELECT StuID FROM Student EXCEPT SELECT StuID FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all students who don't play sports?
| SELECT StuID FROM Student EXCEPT SELECT StuID FROM Sportsinfo; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show student ids who are on scholarship and have major 600.
| SELECT StuID FROM Student WHERE major = 600 INTERSECT SELECT StuID FROM Sportsinfo WHERE onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the student ids for those on scholarship in major number 600?
| SELECT StuID FROM Student WHERE major = 600 INTERSECT SELECT StuID FROM Sportsinfo WHERE onscholarship = 'Y'; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show student ids who are female and play football.
| SELECT StuID FROM Student WHERE sex = 'F' INTERSECT SELECT StuID FROM Sportsinfo WHERE sportname = "Football"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all female students who play football?
| SELECT StuID FROM Student WHERE sex = 'F' INTERSECT SELECT StuID FROM Sportsinfo WHERE sportname = "Football"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all male student ids who don't play football.
| SELECT StuID FROM Student WHERE sex = 'M' EXCEPT SELECT StuID FROM Sportsinfo WHERE sportname = "Football"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all male students who do not play football?
| SELECT StuID FROM Student WHERE sex = 'M' EXCEPT SELECT StuID FROM Sportsinfo WHERE sportname = "Football"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show total hours per week and number of games played for student David Shieber.
| SELECT sum(hoursperweek) , sum(gamesplayed) FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T2.Fname = "David" AND T2.Lname = "Shieber"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the total number of hours per work and number of games played by David Shieber?
| SELECT sum(hoursperweek) , sum(gamesplayed) FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T2.Fname = "David" AND T2.Lname = "Shieber"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show total hours per week and number of games played for students under 20.
| SELECT sum(hoursperweek) , sum(gamesplayed) FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T2.age < 20; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the total number of hours per week and number of games played by students under 20?
| SELECT sum(hoursperweek) , sum(gamesplayed) FROM Sportsinfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T2.age < 20; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many students play video games?
| SELECT count(DISTINCT StuID) FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- How many different students play games?
| SELECT count(DISTINCT StuID) FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show ids of students who don't play video game.
| SELECT StuID FROM Student EXCEPT SELECT StuID FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all students who are not video game players?
| SELECT StuID FROM Student EXCEPT SELECT StuID FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show ids of students who play video game and play sports.
| SELECT StuID FROM Sportsinfo INTERSECT SELECT StuID FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all students who played video games and sports?
| SELECT StuID FROM Sportsinfo INTERSECT SELECT StuID FROM Plays_games; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all game ids and the number of hours played.
| SELECT gameid , sum(hours_played) FROM Plays_games GROUP BY gameid; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are ids and total number of hours played for each game?
| SELECT gameid , sum(hours_played) FROM Plays_games GROUP BY gameid; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all student ids and the number of hours played.
| SELECT Stuid , sum(hours_played) FROM Plays_games GROUP BY Stuid; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the ids of all students and number of hours played?
| SELECT Stuid , sum(hours_played) FROM Plays_games GROUP BY Stuid; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show the game name that has most number of hours played.
| SELECT gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid GROUP BY T1.gameid ORDER BY sum(hours_played) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the name of the game that has been played the most?
| SELECT gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid GROUP BY T1.gameid ORDER BY sum(hours_played) DESC LIMIT 1; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all game names played by at least 1000 hours.
| SELECT gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid GROUP BY T1.gameid HAVING sum(hours_played) >= 1000; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the names of all the games that have been played for at least 1000 hours?
| SELECT gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid GROUP BY T1.gameid HAVING sum(hours_played) >= 1000; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Show all game names played by Linda Smith
| SELECT Gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid JOIN Student AS T3 ON T3.Stuid = T1.Stuid WHERE T3.Lname = "Smith" AND T3.Fname = "Linda"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the names of all games played by Linda Smith?
| SELECT Gname FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.gameid = T2.gameid JOIN Student AS T3 ON T3.Stuid = T1.Stuid WHERE T3.Lname = "Smith" AND T3.Fname = "Linda"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Find the last and first name of students who are playing Football or Lacrosse.
| SELECT T2.lname , T2.fname FROM SportsInfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T1.SportName = "Football" OR T1.SportName = "Lacrosse"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What is the first and last name of all students who play Football or Lacrosse?
| SELECT T2.lname , T2.fname FROM SportsInfo AS T1 JOIN Student AS T2 ON T1.StuID = T2.StuID WHERE T1.SportName = "Football" OR T1.SportName = "Lacrosse"; |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Find the first name and age of the students who are playing both Football and Lacrosse.
| SELECT fname , age FROM Student WHERE StuID IN (SELECT StuID FROM Sportsinfo WHERE SportName = "Football" INTERSECT SELECT StuID FROM Sportsinfo WHERE SportName = "Lacrosse"); |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- What are the first names and ages of all students who are playing both Football and Lacrosse?
| SELECT fname , age FROM Student WHERE StuID IN (SELECT StuID FROM Sportsinfo WHERE SportName = "Football" INTERSECT SELECT StuID FROM Sportsinfo WHERE SportName = "Lacrosse"); |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- Find the last name and gender of the students who are playing both Call of Destiny and Works of Widenius games.
| SELECT lname , sex FROM Student WHERE StuID IN (SELECT T1.StuID FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.GameID = T2.GameID WHERE T2.Gname = "Call of Destiny" INTERSECT SELECT T1.StuID FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.GameID = T2.GameID WHERE T2.Gname = "Works of Widenius"); |
-- Database schema
| Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Video_Games : GameID [ INT ] primary_key , GName [ TEXT ] , GType [ TEXT ] | Plays_Games : StuID [ INT ] Plays_Games.StuID = Student.StuID , GameID [ INT ] Plays_Games.GameID = Video_Games.GameID , Hours_Played [ INT ] | SportsInfo : StuID [ INT ] SportsInfo.StuID = Student.StuID , SportName [ TEXT ] , HoursPerWeek [ INT ] , GamesPlayed [ INT ] , OnScholarship [ TEXT ] |
-- -- what is the last name and gender of all students who played both Call of Destiny and Works of Widenius?
| SELECT lname , sex FROM Student WHERE StuID IN (SELECT T1.StuID FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.GameID = T2.GameID WHERE T2.Gname = "Call of Destiny" INTERSECT SELECT T1.StuID FROM Plays_games AS T1 JOIN Video_games AS T2 ON T1.GameID = T2.GameID WHERE T2.Gname = "Works of Widenius"); |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the name of all customers.
| SELECT customer_name FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the names of all the customers?
| SELECT customer_name FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- How many customers are there?
| SELECT count(*) FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Return the total number of distinct customers.
| SELECT count(*) FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What is the average amount of items ordered in each order?
| SELECT avg(order_quantity) FROM order_items; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the average order quantity per order.
| SELECT avg(order_quantity) FROM order_items; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the names of customers who use payment method "Cash"?
| SELECT customer_name FROM customers WHERE payment_method = "Cash"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which customers use "Cash" for payment method? Return the customer names.
| SELECT customer_name FROM customers WHERE payment_method = "Cash"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the "date became customers" of the customers whose ID is between 10 and 20.
| SELECT date_became_customer FROM customers WHERE customer_id BETWEEN 10 AND 20; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the dates when customers with ids between 10 and 20 became customers?
| SELECT date_became_customer FROM customers WHERE customer_id BETWEEN 10 AND 20; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which payment method is used by most customers?
| SELECT payment_method FROM customers GROUP BY payment_method ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the payment method that is used most frequently.
| SELECT payment_method FROM customers GROUP BY payment_method ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the names of customers using the most popular payment method?
| SELECT customer_name FROM customers WHERE payment_method = (SELECT payment_method FROM customers GROUP BY payment_method ORDER BY count(*) DESC LIMIT 1); |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the name of the customers who use the most frequently used payment method.
| SELECT customer_name FROM customers WHERE payment_method = (SELECT payment_method FROM customers GROUP BY payment_method ORDER BY count(*) DESC LIMIT 1); |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are all the payment methods?
| SELECT DISTINCT payment_method FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Return all the distinct payment methods used by customers.
| SELECT DISTINCT payment_method FROM customers; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the details of all products?
| SELECT DISTINCT product_details FROM products; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Return the the details of all products.
| SELECT DISTINCT product_details FROM products; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the name of all customers whose name contains "Alex".
| SELECT customer_name FROM customers WHERE customer_name LIKE "%Alex%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which customer's name contains "Alex"? Find the full name.
| SELECT customer_name FROM customers WHERE customer_name LIKE "%Alex%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the detail of products whose detail contains the word "Latte" or the word "Americano"
| SELECT product_details FROM products WHERE product_details LIKE "%Latte%" OR product_details LIKE "%Americano%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which product's detail contains the word "Latte" or "Americano"? Return the full detail.
| SELECT product_details FROM products WHERE product_details LIKE "%Latte%" OR product_details LIKE "%Americano%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What is the address content of the customer named "Maudie Kertzmann"?
| SELECT t3.address_content FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t1.customer_name = "Maudie Kertzmann"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Return the address content for the customer whose name is "Maudie Kertzmann".
| SELECT t3.address_content FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t1.customer_name = "Maudie Kertzmann"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- How many customers are living in city "Lake Geovannyton"?
| SELECT count(*) FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t3.city = "Lake Geovannyton"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the number of customers who live in the city called Lake Geovannyton.
| SELECT count(*) FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t3.city = "Lake Geovannyton"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the name of customers who are living in Colorado?
| SELECT t1.customer_name FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t3.state_province_county = "Colorado"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the names of customers who live in Colorado state?
| SELECT t1.customer_name FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id WHERE t3.state_province_county = "Colorado"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the list of cities that no customer is living in.
| SELECT city FROM addresses WHERE city NOT IN ( SELECT DISTINCT t3.city FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id); |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the cities no customers live in?
| SELECT city FROM addresses WHERE city NOT IN ( SELECT DISTINCT t3.city FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id); |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which city has the most customers living in?
| SELECT t3.city FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id GROUP BY t3.city ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the city where the most customers live.
| SELECT t3.city FROM customers AS t1 JOIN customer_addresses AS t2 ON t1.customer_id = t2.customer_id JOIN addresses AS t3 ON t2.address_id = t3.address_id GROUP BY t3.city ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Retrieve the list of all cities.
| SELECT DISTINCT city FROM addresses; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- List all the distinct cities
| SELECT DISTINCT city FROM addresses; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the city with post code 255.
| SELECT city FROM addresses WHERE zip_postcode = 255; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which city is post code 255 located in?
| SELECT city FROM addresses WHERE zip_postcode = 255; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the state and country of all cities with post code starting with 4.
| SELECT state_province_county , country FROM addresses WHERE zip_postcode LIKE "4%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What are the state and country of all the cities that have post codes starting with 4.\
| SELECT state_province_county , country FROM addresses WHERE zip_postcode LIKE "4%"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- List the countries having more than 4 addresses listed.
| SELECT country FROM addresses GROUP BY country HAVING count(address_id) > 4; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- For which countries are there more than four distinct addresses listed?
| SELECT country FROM addresses GROUP BY country HAVING count(address_id) > 4; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- List all the contact channel codes that were used less than 5 times.
| SELECT channel_code FROM customer_contact_channels GROUP BY channel_code HAVING count(customer_id) < 5; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which contact channel codes were used less than 5 times?
| SELECT channel_code FROM customer_contact_channels GROUP BY channel_code HAVING count(customer_id) < 5; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Which contact channel has been used by the customer with name "Tillman Ernser"?
| SELECT DISTINCT channel_code FROM customers AS t1 JOIN customer_contact_channels AS t2 ON t1.customer_id = t2.customer_id WHERE t1.customer_name = "Tillman Ernser"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- Find the contact channel code that was used by the customer named "Tillman Ernser".
| SELECT DISTINCT channel_code FROM customers AS t1 JOIN customer_contact_channels AS t2 ON t1.customer_id = t2.customer_id WHERE t1.customer_name = "Tillman Ernser"; |
-- Database schema
| Addresses : address_id [ INT ] primary_key , address_content [ TEXT ] , city [ TEXT ] , zip_postcode [ TEXT ] , state_province_county [ TEXT ] , country [ TEXT ] , other_address_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_details [ TEXT ] | Customers : customer_id [ INT ] primary_key , payment_method [ TEXT ] , customer_name [ TEXT ] , date_became_customer [ TEXT ] , other_customer_details [ TEXT ] | Customer_Addresses : customer_id [ INT ] Customer_Addresses.customer_id = Customers.customer_id , address_id [ INT ] Customer_Addresses.address_id = Addresses.address_id , date_address_from [ TEXT ] , address_type [ TEXT ] , date_address_to [ TEXT ] | Customer_Contact_Channels : customer_id [ INT ] Customer_Contact_Channels.customer_id = Customers.customer_id , channel_code [ TEXT ] , active_from_date [ TEXT ] , active_to_date [ TEXT ] , contact_number [ TEXT ] | Customer_Orders : order_id [ INT ] primary_key , customer_id [ INT ] Customer_Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , order_date [ TEXT ] , order_details [ TEXT ] | Order_Items : order_id [ INT ] Order_Items.order_id = Customer_Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , order_quantity [ TEXT ] |
-- -- What is the "active to date" of the latest contact channel used by "Tillman Ernser"?
| SELECT max(t2.active_to_date) FROM customers AS t1 JOIN customer_contact_channels AS t2 ON t1.customer_id = t2.customer_id WHERE t1.customer_name = "Tillman Ernser"; |
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