sql - Using INNER JOIN and MAX(), to return same row as MAX -


for reason, can't query return result i'm looking for. i'll explain after outlining situation...

there 2 tables, 1 players , 1 matches. within each match, player gets rating (float/decimal) based on position played in. rating may improve in 1 position, different/better in others. therefore, want able see max(rating) , pos max obtained in, alongside players details.

so, idea following:

select *    players         inner join(select pid,                           max(rating) a,                           pos                      matches                    group  pid) b                 on b.pid = players.ypid   players.ytid = '2010591'     , players.status = '1'  order  ypromdate asc,            ydob asc  

this return of player's details , max rating, if player has played in multiple matches (hence group by) first record returned pos. example, if player1 got rating of 5 defender , 6 forward, query return 6 defender

if more information required, i'm happy provide!

thanks in advance..feel i've taken query down wrong route..

edit answer questions posted:

software: mysql

apache/2.2.15 (centos)

database client version: libmysql - 5.1.69

sample data, cut down save time:

matches table: id, matchid, matchdate, position, timeplayed, rating, pid
(149, 77221704, '2013-08-12 15:00:00', 100, 90, 1.5, 143569504),

(150, 77221705, '2013-09-12 15:00:00', 103, 90, 3, 143569504)

players table: pid, ytid, status (143569504, 2010591, 1)

expected outcome:

pid, ytid, status, pos, max(rating) 143569504, 2010591, 1, 103, 3

current outcome:

pid, ytid, status, pos, max(rating) 143569504, 2010591, 1, 100, 3

something should work

select yourfields (not of them) players p join matches m on m.pid = p.pid join (select pid, max(rating) maxrating matches group pid) temp  on p.pid = temp.pid , rating = maxrating etc 

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