Oracle-L: RE: Rollback segment space usage

From: Leonard, George <george.leonard_at_farnell.com>
Date: Wed, 23 Oct 2002 10:51:02 -0800
Message-ID: <F001.004F186E.20021023105102@fatcity.com>

Hi Kevin,

Fantastic, thx, just what I was looking for, will event tell the oracle support person that could not even assist.

George

George Leonard
Oracle Database Administrator
Dimension Data (Pty) Ltd
(Reg. No. 1987/006597/07)
Tel: (+27 11) 575 0573
Fax: (+27 11) 576 0573
E-mail:george.leonard_at_za.didata.com
Web: http://www.didata.co.za

You Have The Obligation to Inform One Honestly of the risk, And As a Person You Are Committed to Educate Yourself to the Total Risk In Any Activity! Once Informed & Totally Aware of the Risk, Every Fool Has the Right to Kill or Injure Themselves as They See Fit!

-----Original Message-----
Sent: 23 October 2002 17:41 PM
To: Multiple recipients of list ORACLE-L

SELECT

  r.NAME, -- rbs name
  s.sid, 
  s.serial#, 
  s.username, 
  s.machine, 
  t.status,
  t.cr_get, -- consistent gets
  t.phy_io, -- physical IO
  t.used_ublk, -- Undo blocks used
  t.noundo, --   Is a noundo transaction

SUBSTR (s.program, 1, 78) "COMMAND",

  s.username "DB User", 
  t.start_time,
  s.sql_address "Address", 
  s.sql_hash_value "Sql Hash"

FROM sys.v_$session s, sys.v_$transaction t, sys.v_$rollname r WHERE t.addr = s.taddr AND t.xidusn = r.usn ORDER BY t.start_time

Try this. It shows the undo blocks used in the rollback segment. Plus some other variables for query usage.

-----Original Message-----
Sent: Wednesday, October 23, 2002 12:02 PM To: Multiple recipients of list ORACLE-L

Hi all,

Trying here now since have tried to find it online and build the query myself.

I need to figure out how much space a user/session is using of a rollback segment.

I got the queries to show which segment the user is attached to but need to know how much is being used (something like a fuel gauge).

Any takers.

George

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Author: Leonard, George
INET: george.leonard_at_farnell.com

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Author: Kevin Lange
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