delete cascade

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 Received on Sat Apr 14 2007 - 22:46:47 CDT