Hello there, Finally I got a \"yes\" and I\'m moving from Microsoft SQL Server to Postgresql. I\'m using PHP4 and PHPLIB to work with query abstractions. I have a lot of subqueries like: WHERE ... EXISTS (SELECT ...) I was researching and found ambiguous information about this kind of subqueries, is that working fine with Postgresql? Thanks in advance, /paula [EMAIL PROTECTED] [EMAIL PROTECTED] ---------------------------------------------------------------- :: www.nervemail.net :: free access to POP3 accounts ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster