10046 事件跟踪
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10046事件是oracle提供的内部跟踪事件,是对SQL_TRACE的曾强,提供10046可以通知oracle内核开启SQL_TRACE类的跟踪。使用步骤如下:
1.开启跟踪:SQL> alter session set events ‘10046 trace name context forever , level 12’;
2.执行跟踪内容:SQL> select * from workitem t where rownum<5;
3.停止跟踪:SQL> alter session set events ‘10046 trace name context off’;
4.tkprof格式化:切换到跟踪日志文件所在路径下,通过tkprof格式化
C:\Users\WXH-NOTE>f:
1.开启跟踪:SQL> alter session set events ‘10046 trace name context forever , level 12’;
2.执行跟踪内容:SQL> select * from workitem t where rownum<5;
3.停止跟踪:SQL> alter session set events ‘10046 trace name context off’;
4.tkprof格式化:切换到跟踪日志文件所在路径下,通过tkprof格式化
C:\Users\WXH-NOTE>f:
F:\>cd f:\app\wxh-note\diag\rdbms\orcl\orcl\trace
f:\app\WXH-NOTE\diag\rdbms\orcl\orcl\trace>tkprof orcl_ora_16184.trc trace.txt print=100 record=sql.txt sys=no
f:\app\WXH-NOTE\diag\rdbms\orcl\orcl\trace>tkprof orcl_ora_16184.trc trace.txt print=100 record=sql.txt sys=no
5.分析跟踪日志
TKPROF: Release 11.2.0.1.0 - Development on 星期四 2月 16 19:26:06 2017
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Trace file: orcl_ora_16184.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
********************************************************************************
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 0 0.00 0.00 0 0 0 0
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 2 0.00 0.00 0 0 0 0
Misses in library cache during parse: 0
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 1 0.00 0.00
SQL*Net message from client 1 40.18 40.18
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 0 0.00 0.00 0 0 0 0
Execute 0 0.00 0.00 0 0 0 0
Fetch 0 0.00 0.00 0 0 0 0
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 0 0.00 0.00 0 0 0 0
Misses in library cache during parse: 0
1 user SQL statements in session.
0 internal SQL statements in session.
1 SQL statements in session.
********************************************************************************
Trace file: orcl_ora_16184.trc
Trace file compatibility: 11.1.0.7
Sort options: default
1 session in tracefile.
1 user SQL statements in trace file.
0 internal SQL statements in trace file.
1 SQL statements in trace file.
1 unique SQL statements in trace file.
31 lines in trace file.
0 elapsed seconds in trace file.
0 0
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