Re: how to shrink undo tablespace on 10GR2?

  • From: Yong Huang <yong321@xxxxxxxxx>
  • To: mccdba1@xxxxxxxxx
  • Date: Wed, 20 Oct 2010 07:37:10 -0700 (PDT)

The recommended way to "shrink" an undo tablespace in AUM is as others 
said, create a new one and assign undo_tablespace to it.

If you work with Oracle support, they may allow you to set 
"_smu_debug_mode" to 4 and either shrink an undo segment, or offline 
and drop it. Just another option to keep in mind, even though it's 
probably more work.

Yong Huang


      
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