Re: Another view on analysis and ER

From: David Cressey <>
Date: Tue, 18 Dec 2007 11:55:05 GMT
Message-ID: <tyO9j.5977$L91.2532_at_trndny05>

"rpost" <> wrote in message news:c1f35$4766eca5$839b4533$
> David Cressey wrote:
> [...]
> >The question of whether it's "the same entity" or "a different entity "
> >also moot.
> Until you consider other relations referring to the same entity.
> Their attributes may or may not have to be updated as well.

Are they really "referring to the same entity"? Or are they "referring to data values that describe and/or identify some entity"? Can an entity be identified without data? Received on Tue Dec 18 2007 - 12:55:05 CET

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