Tracing an Oracle user query as sys user

Question

Hi,
i need to trace a particular user in Oracle database 11g as a sysuser. i want to know what all statements currently run by that user by generating trace file. How to do that?
Regards,
007

Answer 1

Or else use
execute DBMS_SYSTEM.SET_SQL_TRACE_IN_SESSION (sid=>507, serial#=>4957,sql_trace=>TRUE);
To disable:
execute DBMS_SYSTEM.SET_SQL_TRACE_IN_SESSION (sid=>507, serial#=>4957,sql_trace=>FALSE);
Or create trigger: whenever schemas login into db, trigger will be enablesd and trace all its activity in trace file and stop tracing when it logged off:
CREATE OR REPLACE TRIGGER SYS.set_trace
  AFTER LOGON ON DATABASE
  WHEN (USER like  '&USERNAME')
  DECLARE
      lcommand varchar(200);
  BEGIN
      EXECUTE IMMEDIATE 'alter session set statistics_level=ALL';
      EXECUTE IMMEDIATE 'alter session set max_dump_file_size=UNLIMITED';
      EXECUTE IMMEDIATE 'alter session set events ''10046 trace name context forever, level 12''';
  END set_trace;
  /