Re: Constraints and Functional Dependencies
From: Cimode <cimode_at_hotmail.com>
Date: 25 Feb 2007 03:41:44 -0800
Message-ID: <1172403704.138705.135440_at_t69g2000cwt.googlegroups.com>
Date: 25 Feb 2007 03:41:44 -0800
Message-ID: <1172403704.138705.135440_at_t69g2000cwt.googlegroups.com>
On 25 fév, 06:46, "Marshall" <marshall.spi..._at_gmail.com> wrote:
> On Feb 24, 2:26 pm, mAsterdam <mAster..._at_vrijdag.org> wrote:
>
>
>
> > Yes, a reference (I like the term) is what the (i) defines when
> > there b is not required to be a key of S.
> > It is not what Marshall said he intended it to define.
>
> Yes, I used the term "foreign key" when "referential
> integrity" would have been better. My bad.
Maybe. But I am afraid that you are digging in a much bigger problem
than it seems at first hand.
> Marshall
Received on Sun Feb 25 2007 - 12:41:44 CET