Re: delete cascade

On Apr 16, 5:56 am, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> paul c wrote:
>
> >> Because some times it means: "If a line item exists, the invoice must
> >> also exist."
>
> > Please forgive my thickness, but doesn't "line item doesn't exist
> > unless..." (ie., "only if") "...the invoice exists" mean the same?
>
> No. One states that deleting the invoice automatically deletes any items
> that exist. The other states that one may not delete an invoice when any
> items exist.

Is this anything other than a convenience? (Not that I don't value convenience.)

Marshall Received on Mon Apr 16 2007 - 09:15:43 CDT