Oracle查看trace文件步骤

1.获得当前trace文件生成路径

SQL> select tracefile from v$process where addr in (select paddr from v$session where sid in (select sid from v$mystat));

TRACEFILE
-------------------------------------------------------------------------------------------------------------------------------
f:\Oracle\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_1160.trc

2.开启当前session的trace

SQL> alter session set sql_trace=true;

SQL> select count(*) from t1;

3.转换trc文件内容为可读的输出结果

C:\Documents and Settings\Administrator>tkprof f:\oracle\administrator\diag\rdbm
s\orcl\orcl\trace\orcl_ora_1160.trc output=c:\aa.txt

TKPROF: Release 11.2.0.1.0 - Development on 星期六 10月 6 23:51:07 2012
Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

4.打开c:\aa.txt, 就会看到关于SQL语句 ‘ select count(*) from t1;’ 的执行计划