Rollback segment statistics
                                                 Last update (2008-05-12 11:08:04)
                                                                                                                   Date added (2008-05-10 16:58:00)

Summary
Rollback Segment Statistics
SELECT NAME, XACTS, INITIAL_EXTENT/1048576 INITEXT, NEXT_EXTENT/1048576 NEXTEXT, MIN_EXTENTS MINEXT,
MAX_EXTENTS MAXEXT, OPTSIZE/1048576 OPTSIZE, RSSIZE/1048576 RSSIZE, HWMSIZE/1048576 HWMSIZE,
WRAPS, EXTENDS, SHRINKS, AVESHRINK/1048576 AVESHRINK, GETS, WAITS, WRITES/1024 WRITES, WRITES/GETS WPG
FROM V$ROLLSTAT,V$ROLLNAME,DBA_ROLLBACK_SEGS
WHERE V$ROLLSTAT.USN=V$ROLLNAME.USN
AND DBA_ROLLBACK_SEGS.SEGMENT_ID=V$ROLLNAME.USN
ORDER BY NAME;

SELECT RN.NAME "Rollback Segment", RS.RSSIZE/1024 "Size (KB)", RS.GETS "Gets",
RS.WAITS "Waits", (RS.WAITS/RS.GETS)*100 "% Waits",
RS.SHRINKS "# Shrinks", RS.EXTENDS "# Extends"
FROM SYS.V_$ROLLNAME RN, SYS.V_$ROLLSTAT RS
WHERE RN.USN = RS.USN;
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