MySQL query to get best Ranks from one table and UPDATE with results another

Question

I have a Ranking board for the best first 100 blogs for each gender Males and Females.

I have a blogs table:

PRIMARY
blogs_id  users_id  blogs_score  blo         


        

Answer 1

I think you should add the a GROUP BY clause this way before ORDER BY

$sql->query("UPDATE users
              JOIN (SELECT b.users_id,
                         @curRank := @curRank + 1 AS rank,
                         MAX(b.blogs_score), MAX(b.blogs_score_time   )
                  FROM blogs b
                         JOIN (SELECT @curRank := 0) r
                  GROUP BY b.user_id, rank
                  ORDER BY  b.blogs_score DESC, p.blogs_score_time DESC LIMIT 100
                 ) ranks ON (ranks.users_id = users.id)
            SET users.best_rank = ranks.rank");