Oracle DBA Daily Experiences

Using “oradebug dump events 1″ one can find/list events set in a session.

For example:
In a session events 10046 and 1410 events are set
SQL> ALTER SESSION SET EVENTS='10046 trace name context forever, level 12';

Session altered.

SQL> ALTER SESSION SET EVENTS='1410 trace name context forever, level 12';

Session altered.

In another session login as an account as sysdba
SQL> oradebug setorapid 12
Unix process pid: 10932, image: oracle@localhost.localdomain (TNS V1-V3)

SQL> oradebug dump events 1
Statement processed.

SQL> oradebug tracefile_name
/u01/oradata/admin/TEST/udump/test_ora_10932.trc

After running the above oradebug will dump the events in the trace file in the above case /u01/oradata/admin/TEST/udump/test_ora_10932.trc shows event 1410 and 10046 events set.
…
Dump event group for level SESSION
TC Addr Evt#(b10) Action TR Addr Arm Life
974FED50 1410 1 974fede0 0 0
TR Name TR level TR address TR arm TR life TR type
CONTEXT 12 0 -1 2 0
974FEBF8 10046 1 974fec88 0 0
TR Name TR level TR address TR arm TR life TR type
CONTEXT 12 0 -1 2 0
*** 2010-07-15 23:40:05.671
..