RE: concatenated index

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Wed, 09 Jul 2003 12:51:15 -0700
Message-ID: <F001.005C41BA.20030709124425@fatcity.com>

no_index is a valid hint ... it tells Oracle that exclude specified index from your consideration.

Raj

---

Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !

-----Original Message-----
From: Niall Litchfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 09, 2003 4:34 PM
To: Multiple recipients of list ORACLE-L Subject: RE: concatenated index

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On
> Behalf Of Mark Richard
> Sent: 08 July 2003 06:09
> To: Multiple recipients of list ORACLE-L
> Subject: Re: concatenated index
>
>
>
> I didn't mean that including RULE will prevent the index from
> being used - I should have explained myself better.  When
> using the RULE based optimisor the order of joins in the
> where clause becomes significant, I don't believe the order
> of selection criteria is significant (although I have very
> little experience with the rule based optimisor and could
> easily be proven wrong).
>
> If you really don't want Oracle to use the index (and
> assuming statistics are correct but you know something Oracle
> doesn't) then try:
>
> /*+ NO_INDEX(test) */

I think that should read /*+ FULL(test) */

Niall

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Received on Wed Jul 09 2003 - 14:51:15 CDT