Re: Natural keys vs Aritficial Keys

From: David BL <>
Date: Mon, 25 May 2009 02:03:27 -0700 (PDT)
Message-ID: <>

On May 25, 3:57 pm, David BL <> 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

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