Mysql Ranking Query on 2 columns -
table
id user_id rank_solo lp 1 1 15 45 2 2 7 79 3 3 17 15
how can sort out ranking query sorts on rank_solo ( ranges 0 28) , if rank_solo = rank_solo , uses lp ( 0-100) further determine ranking? (if lp = lp, add ranking no tie rankings)
the query should give me ranking random user_id. how performance wise on 5m+ rows?
so
user_id 1 have ranking 2
user_id 2 have ranking 3
user_id 3 have ranking 1
you can ranking using variablesl
select t.*, (@rn := @rn + 1) ranking t cross join (select @rn := 0) params order rank_solo desc, lp;
Comments
Post a Comment