Question

I have a table of users and a ‘points’ column. I would like to determine the number/place of the row across all the users ordered by ‘points’.

I could just get result of all users data and then do while loop, and stop when id equals necessary user. But I believe there is a more efficient way do to that because my table will contain ~100 000 rows.

Answer 1

Try this:

SET @rownum = 0; 
Select sub.*, sub.rank as Rank
FROM
(
   Select *,  (@rownum:=@rownum+1) as rank
   FROM   users
   ORDER BY points 
) sub
WHERE rank = 15