* fbeltran > According to documentation, in MySQL version 4.0, it is possible to use > sub-selects, but i haven't found the correct syntax...
Like others have said, it's from version 4.1: <URL: http://www.mysql.com/doc/en/ANSI_diff_Subqueries.html > > Does any one know how to do this? > I need someting like this: > > Select a, (select sum(b) from T2 where T2.a=T1.a) as b from T1 A simple join and a GROUP clause should do it: SELECT T1.a, SUM(b) AS b FROM T1 LEFT JOIN T2 USING(a) GROUP BY T1.a -- Roger -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
