Re: delete cascade

paul c wrote:

> I sometimes wonder why the above noun used in place of an adjective is
> needed. When the table/relation definition of a line item references
> an invoice number can it mean anything other than that the line item
> doesn't exist unless the invoice exists? Ie., why shouldn't delete
> always mean so-called "cascade"?
>
> (just trying to keep Marshall interested.)
>
> p

Because some times it means: "If a line item exists, the invoice must also exist." Received on Sun Apr 15 2007 - 06:08:05 CEST