利用sql_trace跟踪一个指定会话的操作

1.  sys用户给管理用户授权。

SQL> grant execute on sys.dbms_system to andy;

Grant succeeded.

2. 查询被跟踪用户的sid,serial#  

SQL> select sid,serial# from v$session where username='DBLINK';

       SID    SERIAL#

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

31    7

3.  管理用户andy开始跟踪dblink用户

SQL> exec sys.dbms_system.set_sql_trace_in_session(31,7,true);

PL/SQL procedure successfully completed.

4.  dblink被跟踪用户执行测试语句。

SQL> select * from user_tables;

5.  跟踪结束

SQL> exec sys.dbms_system.set_sql_trace_in_session(31,7,false);

6.  dblink用户查询自己当前trace文件号

SQL>  select * from v$diag_info where name like 'Default%';

   INST_ID NAME

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

VALUE

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

1 Default Trace File

/home/oracle/app/diag/rdbms/orcl/orcl/trace/orcl_ora_3524.trc

7. 用tkprof工具生成查看文件

[oracle@11g ~]$ tkprof /home/oracle/app/diag/rdbms/orcl/orcl/trace/orcl_ora_3524.trc andy2.txt sys=no

TKPROF: Release 11.2.0.1.0 - Development on Mon Nov 17 16:48:38 2014

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

8.  查看跟踪记录

[oracle@11g ~]$ cat andy2.txt

Trace file: /home/oracle/app/diag/rdbms/orcl/orcl/trace/orcl_ora_3524.trc

Sort options: default

********************************************************************************

count    = number of times OCI procedure was executed

cpu      = cpu time in seconds executing 

elapsed  = elapsed time in seconds executing

disk     = number of physical reads of buffers from disk

query    = number of buffers gotten for consistent read

current  = number of buffers gotten in current mode (usually for update)

rows     = number of rows processed by the fetch or execute call

SQL ID: dtbhjabjx3v1u

Plan Hash: 4102440123

select * 

from                       <--  #刚执行sql找到

 user_tables           

call     count       cpu    elapsed       disk      query    current        rows

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

Parse        1      0.09       0.10          0          0          0           0

Execute      1      0.00       0.00          0          0          0           0

Fetch        2      0.11       0.31        174       1390          0           1

total        4      0.21       0.41        174       1390          0           1

。。。。省略输出。

本文转自 张冲andy 博客园博客，原文链接：http://www.cnblogs.com/andy6/p/6195942.html   ，如需转载请自行联系原作者