If your session actually performed OS read calls of rollback segment blocks, then in your trace data (level 8 or level 12; that is, with <waits=true>) you'll be able to see your rollback segment block accesses from the p1 (file id) and p2 (block id) values associated with WAIT lines whose <nam> has the value <db file sequential read>. Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com Nullius in verba Hotsos Symposium 2007 / March 4-8 / Dallas Visit www.hotsos.com for curriculum and schedule details... -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Doug Gernaat Sent: Tuesday, May 30, 2006 10:04 AM To: oracle-l@xxxxxxxxxxxxx Subject: get rollback info for process we have a ProC program that runs for about 90mins. after its completion, i would like to be able to identify which rollback segments it used. a trace/tkprof didn't help me(maybe i overlooked). statspak? any ideas? thanks -doug- -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l