Oracle-L: RE: Primary keys

From: Hamid Alavi <hamid.alavi_at_quovadx.com>
Date: Thu, 07 Mar 2002 09:43:35 -0800
Message-ID: <F001.004222BC.20020307094335@fatcity.com>

You can have a PK for your history table(like a sequence number) and add the PK from another table as normal column for this history table. There is no need for and Relationship to the history table.

-----Original Message-----

Sent: Thursday, March 07, 2002 9:13 AM
To: Multiple recipients of list ORACLE-L

HI,

We have some history tables that are pointing to parent tables. Parent tables has primary key.
Our developers are saying that we have foreign key from history table to parent table and we don't need primary key on history table. Does there are any benefits if we have primary key(concatenated) on history table. OR
do we should leave history tables without primary key

Thanks
--Harvinder
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Harvinder Singh
INET: Harvinder.Singh_at_MetraTech.com

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Please see the official ORACLE-L FAQ: http://www.orafaq.com
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Author: Hamid Alavi
INET: hamid.alavi_at_quovadx.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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