Hi, I think you can try to use REPLACE INTO table (a,b,c,d) SELECT e,f,g,h FROM table2 WHERE field=what_you_want.
Best Regards, Jocelyn Fournier Presence-PC ----- Original Message ----- From: "Felix Richter" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, February 20, 2002 3:01 PM Subject: SELECT and UPDATE in one query? Hi! I need to SELECT some rows using a lengthy WHERE-clause and then to UPDATE these rows just to set a flag. What is the best way to do this (performance-wise)? Being able to do that in one single query would be great because otherwise I had to use transactions to be sure to match _exactly_ the selected rows. Felix --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
