Re: Higher order relationships

gkiourtas michail wrote:
> Jan Hidders wrote:
> > gkiourtas michail wrote:
> > > Jan Hidders wrote:
> > >
> > > > [F'up to comp.databases.theory]
> > > >
> > > > gkiourtas michail wrote:
> > > > > a) How can we distinguish the higher order relationships?
> > > >
> > > > What do you mean by 'higher order relationships'? Relationships
> > > > over relationships or relationships with a degree higher than
> > > > 2?
> > >
> > > Both of them.
> >
> > Ok. So what is it exactly that you want to know?
>
> I mean how will distinguish multiple binary relationships and
> higher degree relationships to avoid misrepresantation during a
> conceptual schema phase.

Ah, but then you are only talking about relationships with higher degree and not higher order relationships. But never mind that.

The short answer: you apply database normalization. You can also do it more intuitively by looking if the facts represented in the relationship are actually made up of smaller facts.

Kind regards,

    Jan Hidders Received on Sun Nov 12 2000 - 18:30:53 CET