Re: object oriented vs object relational
From: Bob Badour <bbadour_at_golden.net>
Date: Sat, 15 Jun 2002 17:45:46 -0400
Message-ID: <QBOO8.404$905.57451611_at_radon.golden.net>
Date: Sat, 15 Jun 2002 17:45:46 -0400
Message-ID: <QBOO8.404$905.57451611_at_radon.golden.net>
"James" <jraustin1_at_hotmail.com> wrote in message
news:a6e74506.0206142138.709b309f_at_posting.google.com...
> > > > Both XDb and rdbs are fundamentally based on the same concept of
> > > > relation (a related set of information, according to one book).
> > >
> > > XDb is based on domains -- not relations.
>
> Let Range = {Marble}
> Let Domain = {M1, M2}
> The relation between Domain and Range can be defined
> by a function which always returns Marble.
Functions are a small subset of relations and cannot express everyting that relations express. Relations are more general. Received on Sat Jun 15 2002 - 23:45:46 CEST