Re: Hospital ERD

From: Alan <alan_at_erols.com>
Date: Thu, 5 Feb 2004 13:12:14 -0500
Message-ID: <bvu11p$106c51$1_at_ID-114862.news.uni-berlin.de>


Yes, but neither entities nor relationships are tables, which was my point.

"D Guntermann" <guntermann_at_hotmail.com> wrote in message news:HsMH7F.Dt8_at_news.boeing.com...
> Entities and relationships can be one and the same. The terminology is
> ambiguous at best.
>
> - Dan
>
> "Alan" <alan_at_erols.com> wrote in message
> news:bvtkfe$1075hf$1_at_ID-114862.news.uni-berlin.de...
> > The questions is about ERDs. ERDs do not contain tables, they contain
> > entities and relationships, as well as certain constraints on these.
> >
> >
> > "Mike Sherrill" <MSherrillnonono_at_compuserve.com> wrote in message
> > news:lab42010rb2tbf1m5d04100if8q1o83ld4_at_4ax.com...
> > > On Wed, 4 Feb 2004 20:12:50 +1000, "Peter Mount"
> > > <info_at_petermount.au.com> wrote:
> > >
> > > >The theory being it's best to keep related data in only one table
> > >
> > > It's best to keep related data in related tables.
> > >
> > > --
> > > Mike Sherrill
> > > Information Management Systems
> >
> >
>
>
Received on Thu Feb 05 2004 - 19:12:14 CET

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