human
Schema:
Student (StuID, LName, Fname, Age, Sex, Major, Advisor, city_code)
Video_Games (GameID, GName, GType)
Plays_Games (StuID, GameID, Hours_Played)
SportsInfo (StuID, SportName, HoursPerWeek, GamesPlayed, OnScholarship)
Please answer with SQL.
assistant
Sure, I understand.
human
Show student ids who don't have any sports.
assistant
SELECT StuID FROM Student EXCEPT SELECT StuID FROM Sportsinfo
human
What is the first name and last name of the student who have most number of sports?
assistant
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
human
How many games are played for all students?
assistant
SELECT sum(gamesplayed) FROM Sportsinfo
human
Show ids of students who play video game and play sports.
assistant
SELECT StuID FROM Sportsinfo INTERSECT SELECT StuID FROM Plays_games
human
How many students play sports?
assistant
SELECT count(DISTINCT StuID) FROM Sportsinfo
human
What are the ids of all students along with how many sports and games did they play?
assistant
SELECT StuID , COUNT( * ) , SUM( gamesplayed ) FROM Sportsinfo GROUP BY StuID ;