SQL诊断工具-10046 Event

SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for IBM/AIX RISC System/6000: Version 10.2.0.4.0 - Productio
NLSRTL Version 10.2.0.4.0 - Production

SQL> alter session set events '10046 trace name context forever, level 12';
ERROR:
ORA-01031: insufficient privileges

设置10046事件时出现了ORA-01031: insufficient privileges
给用户授予alter session 的权限，试试

SQL> conn / as sysdba
Connected.
SQL> grant alter session to user;
Grant succeeded.

SQL> conn  user/password
Connected.

SQL> select * from  v$mystat where rownum=1;

       SID STATISTIC#      VALUE                                               
---------- ---------- ----------                                               
       445          0          1                                               

 

--在session级别开启10046 Event

SQL> alter session set events '10046 trace name context forever, level 12';

会话已更改。

SQL> set timing on;
SQL> select count(policyno) as sumcount
  2     from Prpjinvoiceloan
  3     Where SettleType = '0'
  4           AND PayRefDate IS Null
  5           AND PRINTERCODE = '3300112003';

  SUMCOUNT                                                                     
----------                                                                     
         0                                                                     

已用时间:  00: 00: 00.29

 

--关闭10046 Event
SQL> alter session set events '10046 trace name context off';

会话已更改。

已用时间:  00: 00: 00.01

 

--查询生产trace文件的路径

SQL> select d.value || '/' || lower(rtrim(i.instance, chr(0))) || '_ora_' || 2 p.spid || '.trc' trace_file_name 3 from (select p.spid 4 from v$mystat m, v$session s, v$process p 5 where m.statistic# = 1 6 and s.sid = m.sid and p.addr = s.paddr) p, 7 (select t.instance 8 from v$thread t, v$parameter v 9 where v.name = 'thread' 10 and (v.value = 0 or t.thread# = to_number(v.value))) i, 11 (select value from v$parameter where name = 'user_dump_dest') d;

TRACE_FILE_NAME                                                                
--------------------------------------------------------------------------------
/oracle/app/admin/ca561dev/udump/ca561dev_ora_1712218.trc                      

已用时间:  00: 00: 00.23
SQL> exit

--为了方便阅读，使用oracle自带的tkprof格式化trace文件
/oracle/app/admin/ca561dev/udump$tkprof ca561dev_ora_1712218.trc  2.txt aggregate=no  explain=user/password

--查看格式化后的文件

/oracle/app/admin/ca561dev/udump$ more 2.txt

。。。省略部分信息。。。

********************************************************************************
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
--------------------------------------------------------------------------------

*** SESSION ID:(445.18365) 2010-11-18 16:00:26.300

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

select count(policyno) as sumcount
   from Prpjinvoiceloan
   Where SettleType = '0'
         AND PayRefDate IS Null
         AND PRINTERCODE = '3300112003'

call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.01          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        2      0.01       0.25        615        615          0           1
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        4      0.01       0.26        615        615          0           1