"Bob Badour" <bbadour_at_golden.net> wrote in message
news:COydnd-jwepVXC-iRVn-hQ_at_golden.net...
> "Marshall Spight" <mspight_at_dnai.com> wrote in message
> news:Vftsb.179962$HS4.1498393_at_attbi_s01...
> > "Bob Badour" <bbadour_at_golden.net> wrote in message
> news:VaWdndbrNqgr0y-iRVn-jg_at_golden.net...
> > >
> > > Relations have no order. The values in relations have order. An
ordered
> > > structure, like an array for instance, involves physical order.
> >
> > Why? Why can't you have logical order?
>
> Ordered domains do have logical order. Relations have no order, but the
> values in the relations have order.
That totally depends whom you ask, of course. A person with mathematical
background would have no trouble defining an order relation among the tuples
of the original relation induced by the order defined on each domain
associated with individual column.
Received on Wed Nov 12 2003 - 19:46:38 CST
