OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 4 0.00 0.00 0 0 0 0
Execute 5 0.00 0.00 0 0 0 0
Fetch 4 0.79 7.45 57075 57082 0 2
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 13 0.79 7.45 57075 57082 0 2
Misses in library cache during parse: 3
Misses in library cache during execute: 1
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
5 user SQL statements in session.
0 internal SQL statements in session.
5 SQL statements in session.
********************************************************************************
Trace file: d:/app/administrator/diag/rdbms/orcl/orcl/trace/orcl_ora_7240.trc
Trace file compatibility: 11.1.0.7
Sort options: fchela
1 session in tracefile.
5 user SQL statements in trace file.
0 internal SQL statements in trace file.
5 SQL statements in trace file.
5 unique SQL statements in trace file.
73 lines in trace file.
75 elapsed seconds in trace file.
五. 分析会话的示例：
先从os上利用top命令找到当前占用cpu资源最高的一个进程的PID号：14483
然后在数据库中根据PID号找到相应的sid号和serial#：
SQL> select s.sid,s.serial# from v$session s,v$process p where s.paddr=p.addr and p.spid='14483';
SID SERIAL#
---------- ----------
101 25695
使用dbms_system.set_sql_trace_in_session包来对这个session进行trace：
SQL> exec DBMS_SYSTEM.SET_SQL_TRACE_IN_SESSION(101,25695,true);
PL/SQL procedure successfully completed.
到user_dump_dest定义的路径下查找刚刚最近生成的trace文件，可以根据时间来排序，找最近的trace文件，也可以根据SID_ORA_SPID.TRC的规则，即ORCL_ORA_14483.TRC找到TRACE文件。
接着使用tkprof工具对此trace文件进行格式化分析，生成分析后的trace文件。
$tkprof orcl_ora_14483.trc allan.txt explain=system/manager aggregate=yes sys=no waits=yes sort=fchela
TKPROF: Release 11.2.0.1.0 - Development on 星期五 5月 28 16:48:49 2010
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
这里生成的allan.txt文件就是我们最终得到的格式化后的trace文件了，然后打开这个文件进行分析。
最后总的统计：
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- --------
Parse 20 0.01 0.02 0 58 0 0
Execute 13197 0.81 0.90 17 7436 6316 1484
Fetch 12944 22.86 22.10 20 2205941 0 8972
------- ------ -------- ---------- ---------- ---------- ---------- --------
total 26161 23.68 23.02 37 2213435 6316 10456