Select highest 3 scores in each day for every user

Question

I have a MYSQL table like this:

  id |  userid  |  score  |      datestamp      |
-----------------------------------------------------
  1  |    1     |   5         


        

Answer 1

SELECT 
    * 
FROM
    table1
LEFT JOIN 
    (SELECT * FROM table1 ORDER BY score LIMIT 3) as lr on DATE(lr.datestamp) = DATE(table1.datastamp)
GROUP BY 
    datestamp