Re: difference between temporary tablespaces

From: Deepak Thapliyal <deepakthapliyal_at_yahoo.com>
Date: Wed, 05 Dec 2001 12:27:21 -0800
Message-ID: <F001.003D60B3.20011205120023@fatcity.com>

Hi Helmut,

here is the breakdown

Tablespaces
1 DMT (dictionary managed)

   a> Normal
   b> temporary(only temp objects)

2. LMT temporary tblspces (True temp tblspces)

   syntax: create temporary tablespace ....    

    The behaviour of this is similar to the /tmp of unix as temp files gets flushed (gone) on db bounce. Also rman full backups ignore these which is a big plus. these are visible using v$tempfile or dba_temp_files or somin like that

Deepak       

• "Daiminger, Helmut" <Helmut.Daiminger_at_KirchGruppe.de> wrote:
  > Hi!
  >
  > I'm getting kinda confused concerning the two types
  > of temporary
  > tablespaces:
  >
  > create tablespace NAME temporary... is the "old" way
  > of creating a temporary
  > tablespace for sorting purposes. It only allows for
  > sort segments to be
  > stored there. And it can only be dictionary managed,
  > right?
  >
  > create temporary tablespace NAME tempfile... is the
  > "new" way for it. It can
  > either be dictionary managed or locally managed.
  > But the complete reference says that this tablespace
  > will only be used for
  > temporary tables.
  > Does this tablespace also allow for sort segments?
  >
  > Or do I need both types of tablespaces?
  >
  > This is 8.1.7 on Sun Solaris.
  >
  > Thanks,
  > Helmut
  >
  >
  

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Author: Deepak Thapliyal
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Received on Wed Dec 05 2001 - 14:27:21 CST