How to enable trace for session level in oracle Database

Find SID for session

SELECT sys_context('USERENV', 'SID') FROM DUAL;

EX:sid: 4179

select sid,serial#,username,program,status,event from v$session where sid='4179';

Enable Trace for session level

begin

dbms_monitor.session_trace_enable(session_id=>4179,serial_num=>59963,binds=>true,waits=>true);

end;

SQL> select spid from v$process where addr=(select paddr from v$session where sid=9219);

SPID

------------------------

12124222

There was file system issue during which alerts got triggered

Disable trace

begin

dbms_monitor.session_trace_disable(session_id=>4179,serial_num=>59963,binds=>true,waits=>true);

end;