human
Schema:
club (Club_ID, name, Region, Start_year)
club_rank (Rank, Club_ID, Gold, Silver, Bronze, Total)
player (Player_ID, name, Position, Club_ID, Apps, Tries, Goals, Points)
competition (Competition_ID, Year, Competition_type, Country)
competition_result (Competition_ID, Club_ID_1, Club_ID_2, Score)
Please answer with SQL.
assistant
Sure, I understand.
human
Can you show me the club names and ids?
assistant
SELECT name , club_id FROM CLub;
human
Hmm, I want to know the player ids, names and their club ids.
assistant
SELECT player_id , name , club_id FROM player;
human
Please list the names of those clubs that do not have any players.
assistant
SELECT name FROM CLub WHERE Club_ID NOT IN ( SELECT Club_ID FROM player ) ;