Re: temp tablespace blow up

just ran an update that had some stupid huge joins and couldn't allocate anymore extents because the 4gb of datafiles were too small. So my update errored. then, no problem still, just that my temp tablespace had an enormous amount of extents. So, i dropped it when users were off and recreated it as TEMPORARY. I've been reading about temporary tablespaces:CREATE TEMPORARY TABLESPACE blah TEMPFILE '/d01/oradata/PROD/blah.dbf' size 1000M; apparently this creates the idea of a file on the OS. Maybe my question is really what is a TEMPFILE?

• Original Message ----- From: "Don Seiler" To: lyallbarbour_at_sanfranmail.com Subject: Re: temp tablespace blow up Date: Tue, 14 Aug 2007 09:43:37 -0500

  A temporary tablespace is what you want for TEMP.

  I'm curious as to how you think you blew it up, and even more curious   as to how Oracle let you drop it. What version of Oracle are you   using?

  Don.

  On 8/14/07, Lyall Barbour wrote:
> Hi all,
> So, i blew up _the_ temp tablespace the other day with an update
  query
> *pats himself on the back*. I found some down time and dropped it,
  looking
> up on the web how to recreate it, i found CREATE TEMPORARY
  TABLESPACE and
> created it as "temporary" not realizing what i was doing (just
  hadn't done
> it in awhile).
> Now, night reports and such take 4 hrs instead of 4 mins to run.
> Now that i've found the basic syntax to create a tablespace again,
  my only
> real question is if someone can explain about TEMPORARY tablespaces
  and what
> good they'd be for? Are they good for the "temp" tablespace for
  queries
> cause there's only two reasons i found for the huge amount of time
> difference for the night process 1) tablespace used to be regular 4
  gig
> tablespace, now it's "TEMPORARY" 2) i created the extents wrong and
  instead
> of being 767 extents it was 37000.
>
> What is a TEMPORARY TABLESPACE?
>
> Lyall
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  Don Seiler
  oracle: http://ora.seiler.us
  ultimate: http://www.mufc.us
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