Re: How to represent a Specification in the Relational model
From: Walt <wamitty_at_verizon.net>
Date: Sat, 13 Jan 2007 13:56:00 GMT
Message-ID: <Qx5qh.1917$wq.244_at_trndny07>
Date: Sat, 13 Jan 2007 13:56:00 GMT
Message-ID: <Qx5qh.1917$wq.244_at_trndny07>
"S. Robert James" <srobertjames_at_gmail.com> wrote in message
news:1168447747.150528.132020_at_k58g2000hse.googlegroups.com...
>
> Walt wrote:
> > This subject is covered in detail on many web pages. Search the web on
> > "generalization specialization relational modeling".
>
> Walt, would you be able to provide a few direct links? The concept is
> new enough to me that I haven't been able to distinguish the relevant
> Google links from the spurious ones.
>
> Thanks!
>
You can start here:
http://www.utexas.edu/its/windows/database/datamodeling/dm/hierarchies.html Received on Sat Jan 13 2007 - 14:56:00 CET