Re: A pk is *both* a physical and a logical object.
Date: Tue, 17 Jul 2007 09:14:27 +0100
"Brian Selzer" <brian_at_selzer-software.com> wrote in message
> In addition, the definition of a candidate key does not demand that its
> values rigidly designate individuals in the universe of discourse.
I've been waiting for someone else to pick up on this comment, but since they haven't I'm going to bite. When you talk about "individuals" here, do you intend that to be understood as "individual propositions"?
Roy Received on Tue Jul 17 2007 - 10:14:27 CEST