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Re: curiosity, mostly: default parallel degree clause

From: Darrell Landrum <darrell_at_landrum.com>
Date: Thu, 13 May 2004 20:34:38 -0500
Message-ID: <000f01c43953$9ff419a0$6401a8c0@darrell1>


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.

> 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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Received on Thu May 13 2004 - 20:45:45 CDT

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