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Answer Posted / manvendra
ROLLBACK SEGMENT OR UNDO SEGMENT IS THE AREA IN UNDO TABLE
SPACE WHERE CHANGED OR NEW UNCOMMITTED DATA RESIDES.
WHEN WE COMMIT, UNDO SEGMENT DATA BECOME UNUSEABLE. BUT IT
STILL RESIDES IN THE UNDO SEGMENT FOR 600 SECONDS.
TO REMOVE THE CONSITANCY ISSUE FROM ORACLE DB.
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