On Tue, 08 May 2007 12:48:30 +0100 Raymond O'Donnell <rod@xxxxxx> wrote: > You can do that, but you'll lose the enforcement of referential > integrity, which is what foreign keys give you. If I get you right: There is *no complete* substitute for foreign keys by using *indexes* since I'd loose the referencial integrity (whereas for unique contraints there *is* a full replacement using indexes)? Felix
