Re: cdt

From: Alan <>
Date: Mon, 7 Jun 2004 10:04:09 -0400
Message-ID: <>

Then let's call it access paths. Location connotes the physical.

"Laconic2" <> wrote in message
> (re: "location")
> "Alan" <> wrote in message
> > Not relevant to a logical model at all.
> Except when discussing the utility of a logical model in the context of a
> larger project.
> The fact that the RDM establishes relationships without pinning down
> locations is part of the reason why it has more data independence than
> other models. This is turn is one of the things that make the RDM a good
> candidate for logical modelling.
> I think that the term "access paths" in the Codd 1970 paper is related to
> what we often call "location". What do D&D have to say about "access
> and or location"?
Received on Mon Jun 07 2004 - 16:04:09 CEST

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