Finding Trace Files

-- To find the trace file for your current session:

SELECT VALUE FROM V$DIAG_INFO WHERE NAME = 'Default Trace File';


-- To find all trace files for the current instance:

SELECT VALUE FROM V$DIAG_INFO WHERE NAME = 'Diag Trace';


-- To determine the trace file for each Oracle Database process:

SELECT PID, PROGRAM, TRACEFILE FROM V$PROCESS;