Re: A pk is *both* a physical and a logical object.
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Mon, 13 Aug 2007 09:47:02 -0300
Message-ID: <46c05288$0$4024$9a566e8b_at_news.aliant.net>
Date: Mon, 13 Aug 2007 09:47:02 -0300
Message-ID: <46c05288$0$4024$9a566e8b_at_news.aliant.net>
JOG wrote:
> You seem to be confusing entities which have identifying attributes,
> and propositions which have keys. These are completely distinct, and
> we don't need to go anywhere near keys in this discussion. Similarly I
> worry that you still consider an update as something other than an
> operation which deletes one proposition and inserts another. Its /
> just/ a shortcut, and promoting it to having some primary status is a
> mistake.
Triggered 'update' procedures do promote it, however. Received on Mon Aug 13 2007 - 14:47:02 CEST