Re: A Simple Notation

From: David Cressey <>
Date: Tue, 10 Jul 2007 14:38:07 GMT
Message-ID: <jRMki.10276$t05.5755_at_trndny09>

"Brian Selzer" <> wrote in message news:hGLki.45816$

> By the definition of a natural join, there can only be one relationship.
> order for a tuple to appear in the result, there must be value agreement
> *all* common attributes in the tuples from the operands.

Agreed. But the fact that common attributes are discovered via common names is surely a setback (IMO). I expect that Bob's tip about D&D's RENAME will get me out of the woods on this score. Received on Tue Jul 10 2007 - 16:38:07 CEST

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