Re: Question about Append hint in Insert

From: jaromir nemec <jaromir_at_db-nemec.com>
Date: Mon, 21 Jun 2004 00:23:23 +0200
Message-ID: <144301c45715$342c6170$3c02a8c0@JARAWIN>

Hi,

I agree that the unique constraint on non-unique index is practicable solution for the insert /*+ append */ scenario described above.

Are there some other problems, overheads etc. additional to the fact, that the non-unique index allocates more space (additional ROWID in each index entry) as the unique index with the same indexed columns?

thanks

Jaromir D.B. Nemec

Original Message ----- From: "Bobak, Mark" <Mark.Bobak_at_il.proquest.com> To: <oracle-l_at_freelists.org>; <oracle-l_at_freelists.org> Sent: Saturday, June 19, 2004 5:39 AM Subject: RE: Question about Append hint in Insert

> Good point. That's why I like to have non-unique indexes supporting
> my unique constraints.

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

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Received on Sun Jun 20 2004 - 17:21:43 CDT