Identify active transactions in undo and rollback segments

col o format a10 col u format a10 select osuser o, username u, sid, segment_name s, substr(sa.sql_text,1,200) txt from v$session s, v$transaction t, dba_rollback_segs r, v$sqlarea sa where s.taddr=t.addr and t.xidusn=r.segment_id(+) and s.sql_address=sa.address(+) And substr(sa.sql_text,1,200) is not null order by 3; col name format a8 col username format a8 col osuser format a8 col start_time […]

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