Re: Natural keys vs Aritficial Keys
From: David BL <davidbl_at_iinet.net.au>
Date: Mon, 25 May 2009 02:03:27 -0700 (PDT)
Message-ID: <2b9ab337-c1f4-4750-a275-cc417e07918e_at_v35g2000pro.googlegroups.com>
> The blunder normally implies that a tuple in a relvar must not be
> identified with a variable ("object instance") of some class.
Date: Mon, 25 May 2009 02:03:27 -0700 (PDT)
Message-ID: <2b9ab337-c1f4-4750-a275-cc417e07918e_at_v35g2000pro.googlegroups.com>
On May 25, 3:57 pm, David BL <davi..._at_iinet.net.au> wrote:
>
> The blunder normally implies that a tuple in a relvar must not be
> identified with a variable ("object instance") of some class.
Oops, of course I should have said *avoiding* the blunder in the above Received on Mon May 25 2009 - 11:03:27 CEST