Thanks to all, it works fine.
Regards John Berman -----Original Message----- From: Martijn Tonies [mailto:[EMAIL PROTECTED] Sent: 06 February 2004 22:18 To: [EMAIL PROTECTED] Subject: Re: A challenge I think Hi, > Using MySQL 4x > I have two tables > Lists and members > Now for every list that a member is a member of there is list ID in the > members table so to query a members lists I would do the following > SELECT members.EmailAddr, members.ListID > > FROM members INNER JOIN lists ON members.ListID = lists.ListID > WHERE (((members.EmailAddr)="[EMAIL PROTECTED]")); Loose the parenthesis - no need. > So I get say > [EMAIL PROTECTED] 3 > [EMAIL PROTECTED] 2 > [EMAIL PROTECTED] 44 > > And it works fine, but now I want to find which lists I'm not a member of > and would appreciate some help. select l.listid from lists l where l.listid not in (select m.listid from members m where m.emailaddr = '[EMAIL PROTECTED]') With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird, MySQL & MS SQL Server. Upscene Productions http://www.upscene.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
