Foreign Keys - unknown characteristic

From: <coakleyj_at_hotmail.com>
Date: Thu, 08 Jul 1999 17:58:32 GMT
Message-ID: <7m2os1$iat$1@nnrp1.deja.com>

Hi all.
I refer to a statement in Steven Feuerstein's Oracle PL/SQL book (2nd edition) (page 601 for those of you who have it), where he makes a comparison between foreign keys and REFs in Oracle 8.

In this table, he says (and I quote):

"...foreign keys have a little-known ability to point to all of several possible parents"

Can anyone explain to me what this might mean ?

Thanks

Coakleyj

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Share what you know. Learn what you don't. Received on Thu Jul 08 1999 - 12:58:32 CDT