Re: Artificial Primary keys
From: John Doherty <jdoherty_at_null.com>
Date: Fri, 01 Feb 2002 16:10:35 -0600
Message-ID: <jdoherty-0102021610350001_at_192.168.2.9>
Date: Fri, 01 Feb 2002 16:10:35 -0600
Message-ID: <jdoherty-0102021610350001_at_192.168.2.9>
In article <3c5186c2$0$14015$edfadb0f_at_dspool01.news.tele.dk>, "Jan Emil
Larsen" <jel-nospam_at_g-it.dk> wrote:
> Or could you give an example - that is: of a natural key that holds
> information, but is immutable?
An ISBN.
--Received on Fri Feb 01 2002 - 23:10:35 CET