Re: curiosity, mostly: default parallel degree clause
- From: "Darrell Landrum" <darrell@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 13 May 2004 20:34:38 -0500
I'm thinking (long time since I read about this) that using default lets
oracle decide "proper" degree of parallelism, which IIRC I think is number
of CPUs * parallel_threads_per_cpu.
----- Original Message -----
From: "Dan Tow" <dantow@xxxxxxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Thursday, May 13, 2004 4:36 PM
Subject: curiosity, mostly: default parallel degree clause
> All,
>
> I recently became aware that Oracle can have a DEGREE value (for example,
for
> parallelism in DBA_INDEXES) of 'DEFAULT'. (To my embarrassment, this value
> makes one of my one-liner scripts in my book return an error, since it
does not
> convert to a number.) You can achieve this value at index-creation time
with
> the clause:
>
> parallel (DEGREE DEFAULT)
>
> Have any of you ever actually used this? What's it good for?
>
> Thanks,
>
> Dan Tow
> 650-858-1557
> www.singingsql.com
>
>
>
>
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