RE: locally managed tbs in 9i and extent sizes

From: Rachel Carmichael <wisernet100_at_yahoo.com>
Date: Wed, 16 Apr 2003 05:28:38 -0800
Message-ID: <F001.0058266A.20030416052838@fatcity.com>

> more than the size of required extent. To know the largest available
> contiguous chunk of space, use
> ( select max(bytes) from dba_free_space where
> tablespace_name='<tablespace name>'; )

Actually that's not quite true, because it's possible for contiguous extents to be listed in dba_free_space as two separate entries, depending on when they were freed up and if they had been allocated at different times.

you'd need to see if there is an entry where block_id = prior block_id+blocks

back in the days before I used uniform extents, I had a script that generated a report of contiguous space by tablespce. I don't need it anymore, LMTs and uniform sizing has allowed me to stop worrying about having contiguous space available.

• ManojKr Jha <jmanoj_at_delhi.tcs.co.in> wrote:
  >
  > Hi,
  >
  > Note: This error comes when mentioned segment is not able to
  > allocate
  > extent because insufficient contiguous space in this tablespace.
  > Check
  > that you have sufficient contiguous space available in this
  > tablespace i.e.
  > more than the size of required extent. To know the largest available
  > contiguous chunk of space, use
  > ( select max(bytes) from dba_free_space where
  > tablespace_name='<tablespace name>'; )
  >
  >
  > And check the extent size required using:
  > ( select next_extent, pct_increase, tablespace_name from
  > dba_rollback_segs where segment_name = '<RS name>';
  > extent size = next_extent * (1 + (pct_increase/100) For Rollback
  > Segment
  > pct_increase is zero.)
  >
  > If the tablespace don't have sufficient contiguous space, the
  > required
  > space for extent can be increased by increasing tablespace by adding
  > more
  > datafile .
  > In case you have sufficient empty space, but lack of contiguous chunk
  > of
  > space, rebuild your tablespace to overcome this error. The same is
  > also
  > true for table/index/temporary segments/Rollback segments.
  >
  > With Regards,
  > Manoj Kumar Jha
  > Mobile No : 9810090974
  >
  >
  

  ---

  
  >
  > A transcendentalist engaged in auspicious activities does not meet
  > with
  > destruction either in this world or in the spiritual world; one who
  > does
  > good, is never overcome by evil.
  >
  

  ---

  
  >
  >
  

  ---

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Author: Rachel Carmichael
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Received on Wed Apr 16 2003 - 08:28:38 CDT