Mailing List Receiver <[EMAIL PROTECTED]> wrote: > mysql> select bademail.email from bademail,noemail where bademail.email <> > noemail.email; > > bademail has about 30,000 rows and noemail has 13,000. > > This, by the way, does a good job of bringing your system to its knees! >
You need something like: SELECT bademail.email FROM bademail LEFT JOIN noemail ON bademail.email=noemail.email WHERE noemail.email IS NULL; -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Egor Egorov / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
