Re: Plea for Query Tuning Help

  • From: "Ghassan Salem" <salem.ghassan@xxxxxxxxx>
  • To: norman.dunbar@xxxxxxxxxxxxxxxxxxxxxxxxx
  • Date: Wed, 13 Sep 2006 09:45:09 +0200

if you use the "view" several times in the query, CBO can decide to
materialize it, without the hint.


On 9/13/06, Norman Dunbar <norman.dunbar@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Morning all,

>> It is more than cosmetic as it can be referenced multiple times and
>> query is only run once and materialized, then processed as a table
in the
>> main query

Correct me if I'm wrong, but I'm sure it is only materiali[sz]ed if you
use the materialize hint ? Jonathan has a post somewhere on this list on
this very subject (I think !).

Cheers, Norman.

Norman Dunbar.
Contract Oracle DBA.
Rivers House, Leeds.

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