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Re: The Theoretical Foundations of the Relational Model

From: JRStern <JXSternChangeX2R_at_gte.net>
Date: Mon, 24 Jun 2002 17:36:53 GMT
Message-ID: <3d175923.10916296_at_news.verizon.net> 






On 24 Jun 2002 18:35:46 +0200, hidders_at_hcoss.uia.ac.be (Jan.Hidders)
wrote:


>Er, a "physical order" in a logical/conceptual data model is an oxymoron.


>

>Easy for the user, sure, and defining such a data model is not difficult at

>all. But can you give me a sound and complete axiomatization for this new

>type of logic?




It has zero effect on logical operations, it has positive benefit to
whole applications, so why not allow it?



J.
Received on Mon Jun 24 2002 - 19:36:53 CEST












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