I think I sorted it out ... INSERT INTO master_comments (comment_no,comment_text,language_id) SELECT comment_no,comment_text,language_id from mComments WHERE NOT EXISTS ( SELECT comment_no FROM master_comments WHERE mComments.comment_no = master_comments.comment_no );
Hope this helps someone else ..... -----Original Message----- From: roger.maynard [mailto:[EMAIL PROTECTED] Sent: 23 January 2008 18:58 To: mysql@lists.mysql.com Subject: INSERT WHERE NOT EXISTS syntax Can anyone tell me why this isn't working... v5.0 INSERT INTO master_comments (comment_no,comment_text,language_id) SELECT comment_no,comment_text,language_id from mComments WHERE NOT EXISTS (SELECT comment_no FROM master_comments); I thought I had it working once but now it isn't? Roger -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]