Re: Modelling Disjoint Subtypes
From: Marshall <marshall.spight_at_gmail.com>
Date: 24 Mar 2007 13:14:20 -0700
Message-ID: <1174767260.362044.114300_at_e1g2000hsg.googlegroups.com>
Date: 24 Mar 2007 13:14:20 -0700
Message-ID: <1174767260.362044.114300_at_e1g2000hsg.googlegroups.com>
On Mar 24, 11:13 am, "Marshall" <marshall.spi..._at_gmail.com> wrote:
>
> We can combine c2 and c3 to rewrite the fk that enforces
> the subtype relationship.
>
> constraint c3': foreign key(id, subtype1) references P(id, t)
Marshall Received on Sat Mar 24 2007 - 21:14:20 CET