Toni > i have a problem to compare data inside two tables. i have two tables let > say: "Master" and "Pick". For example the content of these two tables are: > > Table "Master" Table "Pick" > a a > b b > c c > d d > e > f > g > > my goal is to know any data that missing in table "pick" comparing to table > "master". The answer should be "e, f, and g". Would you help me to show me > the query? > > thank you so much ..
Assuming field m in master and p in pick... SELECT m from master LEFT JOIN pick on master.m=pick p WHERE pick.p IS NULL PB --------------------------------------------------------------------- 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