Start Trace in Session

/**********************************************************************
 * Description:
 *      SQL*Plus script to start the SQL Trace for another session.  This
 *      script displays the trace file name and location.  This script will
 *      display the user sessions and prompt for information it needs.
 *
 *********************************************************************/
SET TERMOUT OFF
SET FEEDBACK OFF
SET VERIFY OFF
SET ECHO OFF
column in_db_namet new_value out_db_namet noprint
column in_spidt new_value out_spidt noprint
column in_usert new_value out_usert noprint
column in_patht new_value out_patht noprint

select value in_db_namet,
       user in_usert
  from v$parameter
 where name = 'db_name';

-- Find the path of the trace file directory
select value in_patht
  from v$parameter
 where name = 'user_dump_dest';

-- This will put identifiable characters into the trace file and make it easier to find
alter session set tracefile_identifier = &out_usert;

SET TERMOUT ON
column program format a20

select username,
       sid,
       serial#,
       program
  from v$session
 where program NOT LIKE 'ORACLE%';
ACCEPT in_user PROMPT 'Enter User ID from list above : '
ACCEPT in_sid PROMPT 'Enter SID from list above : '
ACCEPT in_serial PROMPT 'Enter SERIAL from list above : '
PROMPT
PROMPT 'Write the SID and SERIAL down...will need them to stop the trace'
PROMPT
SET TERMOUT OFF

select p.spid in_spidt
  from v\$process p, v\$session s
 where p.addr = s.paddr and
       s.username = upper('&in_user') and
       s.sid = &in_sid;

SET TERMOUT ON
PROMPT
PROMPT Started SQL Trace in session
SELECT '&out_path' "Trace File Path" from dual;
SELECT '&out_db_namet' || '_ora_' || '&out_spidt' || '.trc' "Trace File Name"
  from dual;

PROMPT
rem exec dbms_system.set_ev(&in_sid, &in_serial, 10046, 12, '');
EXECUTE DBMS_MONITOR.SESSION_TRACE_ENABLE(session_id => &in_sid,
                                          serial_num => &in_serial,
                                               waits => TRUE,
                                               binds => TRUE);
SET FEEDBACK ON
SET VERIFY ON
SET ECHO ON

This will start a trace in another session
exec dbms_system.set_sql_trace_in_session(3,5023,true);
exec dbms_system.set_sql_trace_in_session(3,5023,false);



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