Re: foundations of relational theory?
Date: Mon, 20 Oct 2003 19:50:49 +0100
Message-ID: <bn1b07$g1k$1_at_gazette.almaden.ibm.com>
"Bob Badour" <bbadour_at_golden.net> wrote in message
news:xUidndtKYp-wtAmiU-KYhQ_at_golden.net...
> "Paul Vernon" <paul.vernon_at_ukk.ibmm.comm> wrote in message
> news:bn15ap$g1a$1_at_gazette.almaden.ibm.com...
> > "Dawn M. Wolthuis" <dwolt_at_iserv.net> wrote in message
> > news:6db906b2.0310191644.13b47642_at_posting.google.com...
[snip]
> > > For example, "Jane Doe has three kids -- John, George, & Paul -- and
> > > also three cars -- a 1967 Mustang Fastback and a 1968 VW Bug, but the
> > > car she usually drives is her other car -- a 2002 Ford Thunderbird".
> > > A lousy sentence, but easy to image on a form. This sentence/form is
> > > about a single person -- Jane Doe
> >
> > Any why, prey, is that sentence not also about the person John (or
George
> or
> > Paul)? Or equally it is not about 2002 Ford Thunderbirds?
>
> You forgot to ask Dawn for the queries:
> Who has kids John and Paul?
> Who has a kid whose name contains John and Paul?
Oh, I was assuming that no two people can have the same name. Bit like racehorses I believe. Only one Paul ever existed? Heck if I was in charge of things,...
Regards
Paul Vernon
Business Intelligence, IBM Global Services
Received on Mon Oct 20 2003 - 20:50:49 CEST