Question

I have an application that tracks high scores in a game.

I have a user_scores table that maps a user_id to a score.

I need to return the 5 highest scores, but only 1 high score for any specific user.

So if user X has the 5 highest scores on a purely numerical basis, I simply return the highest one and then the next 4 user scores.

I have tried to use:

SELECT user_id, score  FROM user_scores  ORDER BY score DESC  GROUP BY user_id  LIMIT 5 

But it seems that MySQL drops any user_id with more than 1 score.

Answer 1

This should work:

SELECT user_id, MAX(score) FROM user_scores  GROUP BY user_id  ORDER BY MAX(score) DESC  LIMIT 5