Re: Relation Definition

From: Roy Hann <specially_at_processed.almost.meat>
Date: Tue, 22 Feb 2005 08:53:05 -0000
Message-ID: <FaidnYtgh5jnboffRVn-vA@pipex.net>

"Jan Hidders" <jan.hidders_at_REMOVETHIS.pandora.be> wrote in message news:VxtSd.17747$mc3.1424408_at_phobos.telenet-ops.be...
> Alfredo Novoa wrote:
> > What about this?
> >
> > Def. [Relation] A *relation* is a set of tuples that all have the same
> > attribute names.
>
> I can live with that, although I would prefer the end to be a bit more
> precise, as in "all are defined for the same set of attribute names",
> but your formulation is precise enough.

This has the great virtue that it doesn't make reference to "columns", which are simply a formatting convention, for readability and *nothing else*.

Roy Received on Tue Feb 22 2005 - 02:53:05 CST