How to trace an application in Oracle 10g

Question

Hi,
I want to trace a complete application in Oracle 10g end-to-end.
Here is the scenario,
The are two systems:
System A: Oracle 10g server
System B: Windows server
The application runs on system B.
How do I trace the complete application in oracle 10g?
I read about the trcsess tool but will like to know if there is a way to collate all *.trc produced by the application.
Thanks in advance!
-Thanks
Karthik

Answer 1

Tracing the Oracle transactions is easy, but you need to decide what level of trace you want and identify the database sessions to trace.
Tracing can generate huge amounts of logs, so think carefully if you really need to do this.
The tracing will only capture the database transactions. It won't track what happens in the application (e.g mouse clicks etc)
Options to enable tracing :-
-- ALTER SESSION
alter session set tracefile_identifier = 'robert_trace'; # so that the trace files from this session are easily identified
alter session set events '10046 trace name context forever, level 8';
-- ALTER SYSTEM
alter system set sql_trace=true;
-- DBMS_SESSION
exec dbms_session.set_sql_trace(sql_trace => TRUE);
-- DBMS_SUPPORT
exec dbms_support.start_trace(waits=>TRUE, binds=>FALSE);
-- DBMS_SYSTEM
exec sys.dbms_system.set_ev(72,21237,10046,12,'');
-- ORADEBUG
select username, spid from v$process;
ORADEBUG SETOSPID 21237
ORADEBUG EVENT 10046 TRACE NAME CONTEXT FOREVER, LEVEL 12
-- DBMS_MONITOR
exec dbms_monitor.session_trace_enable(session_id=>75, serial_num=>21237);