Re: ID field as logical address

From: Walter Mitty <>
Date: Wed, 03 Jun 2009 15:23:29 GMT
Message-ID: <RzwVl.15$>

"Brian Selzer" <> wrote in message news:2zuVl.25052$

> I disagree. It is my contention that each tuple in a database--regardless
> of whether it is in a base or a derived relation--maps to some thing in
> the Universe of Discourse but no two tuples in the same database map to
> exactly the same thing. When presented with a proposed database, there
> must be some mechanism to correlate the things that each tuple in the
> current database maps to with the things that each tuple in the proposed
> database maps to.

Why? Received on Wed Jun 03 2009 - 17:23:29 CEST

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