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Script: user_undo_space.sql
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-- ----------------------------------------------------------------------------------- -- File Name : https://oracle-base.com/dba/monitoring/user_undo_space.sql -- Author : Tim Hall -- Description : Displays the undo space currently in use by users. -- Requirements : Access to the V$ views. -- Call Syntax : @user_undo_space -- Last Modified: 12/02/2004 -- ----------------------------------------------------------------------------------- COLUMN sid_serial FORMAT A20 COLUMN username FORMAT A20 COLUMN program FORMAT A30 COLUMN undoseg FORMAT A25 COLUMN undo FORMAT A20 SET LINESIZE 120 SELECT TO_CHAR(s.sid)||','||TO_CHAR(s.serial#) AS sid_serial, NVL(s.username, '(oracle)') AS username, s.program, r.name undoseg, t.used_ublk * TO_NUMBER(x.value)/1024||'K' AS undo FROM v$rollname r, v$session s, v$transaction t, v$parameter x WHERE s.taddr = t.addr AND r.usn = t.xidusn(+) AND x.name = 'db_block_size';