How to Enable SQL_TRACE for Another Session or in MTS Using Oradebug(文档 ID 1058210.6)

***Checked for relevance on 12-Jun-2012***How to Enable SQL_TRACE for Another Session Using ORADEBUG:=========================================================== The ORADEBUG utility can enable/disable setting the SQL tracing for another user's session or an MTS session.  To enable tracing for another session, the Oracle process identifier (PID) or the Operating System processes identifier (SPID) must be identified from v$process.  This is an effective way of capturing a SQL trace from a process which is already running.  The output can be used to analyze SQL related performance issues.  The ORADEBUG dump produces a trace file in the user_dump_dest that can be formatted with TKPROF.  The ORADEBUG is a utility which is available from Server Manager line mode (svrmgrl).  This utility is available in Oracle versions 7.3 and up.    NOTE:  If using an older version of Oracle (prior to Oracle9), use 'svrmgrl'instead of SQL*Plus as shown in the examples below.e.g.> svrmgrlSVRMGR>  connect internalDo the following:   1. Obtain the Oracle process identifier or the Operating System process    identifier (SPID) from v$process in a non MTS environment:        >  sqlplus /nolog       SQL> connect / as sysdba        SQL> select pid, spid, username from v$process;                 PID    SPID   USERNAME                ----   -----  --------                8      25807  oracle    Obtain the Oracle process identifier or the Operating System process    identifier (SPID) from v$process in an MTS environment:          sqlplus /nolog         SQL> connect / as sysdba         SQL> select pid, spid from v$process p, v$shared_server s              2  where p.addr = s.paddr;       PID SPID---------- ------------        14 6976     2. Attach to the process using ORADEBUG.     Using the Oracle process identifier:         SQL> oradebug setorapid 8         Unix process pid: 25807, image: oracleV804      - or -        Using the Operating System process identifier:         SQL> oradebug setospid 25807         Oracle pid: 8, Unix process pid: 25807, image: oracleV804    3. Turn on SQL Trace for the session.         SQL> oradebug event 10046 trace name context forever, level 12         Statement processed.   4. Get the name and location of the tracefile generated        SQL> oradebug tracefile_name         /opt/oracle/admin/db92/udump/db92_ora_16921.trc5. Turn off the SQL trace for the session.           SQL> oradebug event 10046 trace name context off   6. Format trace file using TKPROF.   References:  ===========    Note 41634.1 - TKPROF and Problem Solving

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NOTE:310830.1 - How to Use Oradebug to Get Trace File Name and Location