Hi,

as always I like to know how things are progressing especially when they are running long. This is also the case with ROLLBACK.

Here is a statement that helped me:

SELECT s.username,
       s.sid,
       s.serial#,
       t.used_ublk,
       t.used_urec,
       rs.segment_name,
       r.rssize,
       r.status
FROM   v$transaction t,
       v$session s,
       v$rollstat r,
       dba_rollback_segs rs
 WHERE s.saddr = t.ses_addr
   AND t.xidusn = r.usn
   AND rs.segment_id = t.xidusn
 ORDER BY t.used_ublk DESC
/

I am interested if there are better options.

Have fun.