Blackwater,
On Sep 10, 2004, at 12:39 PM, blackwater dev wrote:
Hello,
I need to grab the max value of all of the data in a table grabbing the max total for each client. Example.
T1 id total clientid 1 100 111 2 200 111 3 100 112 4 150 112
I need a query that will grab the highest total per clientid (200, and 150) then average them. My first inclination is to do a subselect
select avg(total) from t1 where t1.total=(select max(total) from t1 t2 where t2.clientid=t1.clientid)
But can't use subselects with mysql....how do I do it??
Yes you can. Check this out and see if all your syntax is correct.
http://dev.mysql.com/doc/mysql/en/Subqueries.html
~Philip
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