Re: object algebra

"Neo" <neo55592_at_hotmail.com> wrote in message news:4b45d3ad.0402271854.495ec058_at_posting.google.com...
> > > > Could you show us the parenthesized representation of a three node
> > > > directed graph, with nodes A, B, and C, and arcs from A->B, B->C,
> > >
> > > -->A-->B-->C
> > > |----------|
>
> I will try to continue with this exercise, even though I don't claim
> that it is easier to express in relational algebra (unless it is out
> of RDM's scope).
>
> output = f(A,B,C);
>
> I am assuming you want me to provide the function f as a relational
> expression. I am assuming you will allow me inputs A, B, C (which are
> not sufficent). What do you want the ouput to be?

I was more wondering how you would use TDM to represent the three-node directed graph.

Marshall Received on Sat Feb 28 2004 - 05:41:05 CET