Re: Another view on analysis and ER
Date: Tue, 18 Dec 2007 11:55:05 GMT
"rpost" <rpost_at_pcwin518.campus.tue.nl> wrote in message
> 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