Re: Database design
Date: Thu, 23 Feb 2006 10:30:26 +0200
Message-ID: <dtjrr3$h81$1_at_emma.aioe.org>
"Mark Johnson" <102334.12_at_compuserve.com> wrote in message
news:r4dpv1p6jf3ldeemd7ujd3beuedp72ebp5_at_4ax.com...
> "x" <x_at_not-exists.org> wrote:
>
> >"Mark Johnson" <102334.12_at_compuserve.com> wrote in message
> >news:oufov1lg3bkmjf5ce1ipmi4di6r3efj4e6_at_4ax.com...
>
> >> Flat in the context of a heirarchy. If a relation is simply an
> >> unordered list, sorted or not, it is flat. But it's a very informal
> >> and loose characterization, which seems to have rubbed some the wrong
> >> way; perhaps sparking, in a fuzzy and weakly vague fashion, an
> >> objection to those who would somehow wish to call multi-dimensions, or
> >> a Cartesian product, flat. But I don't know.
>
> >Please take the time to write a mathematical definition of a hierarchy
> Do you really disagree with what I wrote, above?
I cannot disagree with what you wrote.
My interest in this group is in databases not in literature.
Received on Thu Feb 23 2006 - 09:30:26 CET