RE: Unique Index or Constraint??

From: Jack C. Applewhite <japplewhite_at_inetprofit.com>
Date: Fri, 01 Jun 2001 09:22:46 -0700
Message-ID: <F001.00317F05.20010601084450@fatcity.com>

Vishak, Terry,

Also, an advantage of a Unique Constraint is that a Foreign Key can reference a Unique Key, but not a Unique Index.

Jack

---

Jack C. Applewhite
Database Administrator/Developer
OCP Oracle8 DBA
iNetProfit, Inc.
Austin, Texas
www.iNetProfit.com
japplewhite_at_inetprofit.com
(512)327-9068

-----Original Message-----
Sent: Friday, June 01, 2001 10:05 AM
To: Multiple recipients of list ORACLE-L

According to Oracle, they will be de-supporting the unique index in the future. Since the unique constraint creates an index anyway, might as well go
with the unique constraint.

Terry

Vishak wrote:

> Hello Gurus,
>
> I would like to know whether creating an unique-index on a column or a
> unique constraint on a column(during creation of the table) would be fine.
>
> Which option would be better?
>
> TIA
> Regards
> Vishak
>

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-- 
Author: Jack C. Applewhite
  INET: japplewhite_at_inetprofit.com

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Received on Fri Jun 01 2001 - 11:22:46 CDT