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Home -> Community -> Usenet -> comp.databases.theory -> Re: Ternary Relationship cardinality
sorry I meant recursive relationship .. eg. Person Marries Person
J M Davitt wrote:
> miklesw_at_gmail.com wrote:
> > Hi,
> >
> > I am working on an assignment which has 2 ternary relationship. I'm
> > can't figure out their cardinality.
> >
> > Maybe I am going through one of those mental blocks...
> >
> > Can someone give me some cardinality examples for N-ary relationships?
> > all the pics i found on google images don't include this..
> >
> > My other option is to convert the 3-ary relationship into a weak
> > entity.. but I'll definitely loose marks on that
> >
> > Is it ok to have N'ary Relationships which includes recursion? looks
> > kind of odd to me
> > eg [person](buyer) trades [item] with [person](seller)
>
> Recursion? How so?
Received on Tue Sep 19 2006 - 01:57:19 CDT
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