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

Home -> Community -> Mailing Lists -> Oracle-L -> Re: Enforced Costraints ??

Re: Enforced Costraints ??

From: Jared Still <jkstill_at_cybcon.com>
Date: Tue, 12 Jun 2001 12:05:20 -0700
Message-ID: <F001.003262DD.20010612121145@fatcity.com>

On Tuesday 12 June 2001 03:26, Daemen, Remco wrote:
> Not good enough ! According to various documents, you should add your own
> primary key (surrogate key), which also makes it easier to keep track of
> history and combine various sources. I agree with Lee: you should never
> implement a PK with non-unique values.
>

Yes! Yes! Yes!

http://www.dbmsmag.com/9805d05.html
http://www.dbpd.com/vault/9805xtra.htm

Plus numerous database design references, anecdoctal experiences, etc.

Jared

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Jared Still
  INET: jkstill_at_cybcon.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
Received on Tue Jun 12 2001 - 14:05:20 CDT

Original text of this message

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