Re: By The Dawn's Normal Light
Date: Tue, 26 Oct 2004 20:29:24 GMT
Message-ID: <Esyfd.310403$MQ5.202758_at_attbi_s52>
Alfredo:
Speaking of the "real world" how about
"Alfredo Novoa" <anovoa_at_ncs.es> wrote in message
news:oq4mn0dk75gcose5ageb2pk25tpgelfd3r_at_4ax.com...
[snipped]
> You build in logical tables. SQL tables are logical.
>
> An SQL table represents a relation if and only if it does not allow
> nulls and it has at least a candidate key.
"Alfredo Novoa" <alfredo_at_ncs.es> wrote in message
news:417d2de6.21514906_at_news.wanadoo.es...
[snipped]
> They were windmills. Quixote was a fool and he finished shattered on
> the ground yet another time. Confused and sloppy thinking leads to the
> disaster. We can not change the real world with our fantasies. That is
> the moral.
Isn't this a fantasy!? Don't some "real world" examples of relations contain no data (say a drivers license application form)?
:-)
Bill Received on Tue Oct 26 2004 - 22:29:24 CEST