Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> comp.databases.theory -> Re: Foreign key problem

Re: Foreign key problem

From: x <x_at_not-exists.org>
Date: Thu, 15 Jun 2006 15:33:19 +0300
Message-ID: <e6rjr9$j4r$1@nntp.aioe.org>

"Jay Dee" <ais01479_at_aeneas.net> wrote in message news:svbkg.68231$P2.43250_at_tornado.ohiordc.rr.com...

> Hmm. A _name_ /would/ be necessary to permit your example..

I know. But it shouldn't be.

> But what is the meaning of the overlapping constraints
> with different names?

Overlapping as in the example, or overlapping as identical ?

How about this:

t1(a,b)
t2(c,d)

(a,b) references (c,d)
(b,a) references (c,d) Received on Thu Jun 15 2006 - 07:33:19 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US