Hi I have two tables, say A and B, that have a many-to-many relationship, implemented in the usual way with a join table A_B.
How can I economically find all the rows in table A whose id's are not in A_B at all (i.e. they have zero instances of B associated)? Thanks Daniel ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly