i have three tables. products, class, and dept. class and dept each have two fields - code and text. products has a field named class (containing class codes) and a field named dept (containing dept codes) for some depts, all the products that have that dept have the same class for other depts, there are products in all classes with that dept. i want to generate a list of depts based on product class/dept combinations. for example: if there is a product with dept 1 and class 1, then dept 1 should be on the list if there are no products in dept 2 with class 1, then dept 2 should not be on the list i've tried select dp.name, dp.dept from dept.dept as dp inner join products as pr on dp.dept=pr.dept where pr.class = '1'; i think this filters out the right depts, but of course it gives me multiple rows for each dept. how can i remove the duplicate rows? can anyone give me a clue? should i be organizing my tables differently if i want this kind of result? thanks --------------------------------------------------------------------- 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
