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
Show all the positions of the players.
assistant
SELECT POSITION FROM player;
human
How many unique positions are there?
assistant
SELECT COUNT( distinct POSITION ) FROM player;
human
How many players are there for each of them?
assistant
SELECT POSITION , COUNT( * ) FROM player GROUP BY POSITION;
human
What is the average points of all players?
assistant
SELECT AVG ( Points ) FROM player ;