Re: Can these constraint be implemented in an RDBMS ?

From: ben brugman <ben_at_niethier.nl>
Date: Tue, 2 Mar 2004 11:15:40 +0100
Message-ID: <40445ecc$0$3680$4d4ebb8e@read.news.nl.uu.net>

"Alfredo Novoa" <alfredo_at_ncs.es> wrote in message news:40445aaf.1980137_at_news.wanadoo.es...
> On Mon, 1 Mar 2004 22:16:33 +0100, "ben brugman" <ben_at_niethier.nl>
> wrote:
>
> >Hello readers,
> >
> >In another thread I was asked to produce an example which
> >can not be implemented with RDBMS constraints.
> > <snip>
> >The implementation has to be done in Oracle or SQL-server.
>
> There is a clear contradiction. Oracle and SQL-Server are not RDBMSs.

Can you clearify this a bit more ?

Can you name RDBMSs ?

Do you have a solution for the problem if this requirement (Oracle or SQL-server)
is dropped. The imaginairy customer still likes to make a choice between at least two 'RDBMSs'.

Thanks for your time,

Ben Brugman

>
>
> Regards
> Alfredo
Received on Tue Mar 02 2004 - 04:15:40 CST