On Tue, Mar 02, 2004 at 09:45:03 -0500, Robert Treat <[EMAIL PROTECTED]> wrote: > > Wouldn't a FK on both tables be the appropriate schema? With the FK on > contract being deffered?
No, since he only cares that there is at least one plan for a contract, not a particular plan. You can do something like this as a hack where when the plan referenced by the contract gets deleted that the contract has to be changed to reference another plan or be deleted. But I think using triggers is a better way to do this. ---------------------------(end of broadcast)--------------------------- TIP 3: 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