Re: Deallocate unused (above high water mark)
- From: Mladen Gogala <mladen@xxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 12 May 2004 13:45:26 -0400
Blocks that have been emptied are also considered empty blocks. Alter table
deallocate
unused deallocates blocks that, just like Drew Barrymore, have never been
kissed or touched
in any other way. It's the same distinction as made by RMAN: it diligently
writes the blocks
that have been emptied, but not the blocks that have never been (ab)used.
On 05/12/2004 12:36:08 PM, Sergei wrote:
> Good morning Oracle gurus,
>
> Could somebody please explain why after 'alter table deallocate unused'
> my user_tables view still shows empty blocks?
> At the same time, dbms_space.unused_space procedure shows 0 empty blocks.
--
Mladen Gogala
Oracle DBA
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