通过shell脚本定位性能sql和生成报告(r2笔记37天)

oracle的sql monitor是一个很有用的工具集。但是通过sql命令和反复去调用dbms_tune来传入参数等等操作感觉挺费事的。
可以通过如下的脚本来定位sql monitor中的性能sql，发现一些潜在的性能问题。
这个脚本可以定位正在sql monitor监控范围内的sql语句。

MONITOR_OWNER=`sqlplus -silent $DB_CONN_STR@$SH_DB_SID <<END
set pages 100
set linesize 200
col status format a20
col username format a15
col module format a20
col program format a25
col sql_id format a20
col sql_text format a20
select sql_id,STATUS , USERNAME , MODULE , PROGRAM, substr(SQL_TEXT,0,20) sql_text from v\\$sql_monitor where username =upper('$1') group by sql_id,STATUS , USERNAME , MODULE , PROGRAM, substr(SQL_TEXT,0,20);
exit;
END`


if [ -z "$MONITOR_OWNER" ]; then
echo "no object exists, please check again"
exit 0
else
echo '*******************************************'
echo " $MONITOR_OWNER "
echo '*******************************************'
fi

脚本运行结果如下，可以显示sql_id和状态，还有简单的sql语句。
尤其可以重点关注那些正在执行的语句。
SQL_ID STATUS USERNAME MODULE PROGRAM SQL_TEXT
-------------------- -------------------- --------------- -------------------- ------------------------- --------------------
7u9gsk798bvrp DONE (ALL ROWS) TEST_USER JDBC Thin Client JDBC Thin Client SELECT AA.DATA_GRO
cjqdgd14xjwjm DONE (ALL ROWS) TEST_USER JDBC Thin Client JDBC Thin Client SELECT TO_CHAR (SUBS
2zymmn3s4xn1k DONE (ALL ROWS) TEST_USER JDBC Thin Client JDBC Thin Client SELECT nrg."Cyc
1hg2wcuapy3y3 EXECUTING TEST_USER JDBC Thin Client JDBC Thin Client select d1_run_reque
如果要生成sql monitor报告。
可以采用如下的脚本
MONITOR_OWNER=`sqlplus -silent $DB_CONN_STR@$SH_DB_SID <<END
set pages 100
set linesize 200
col status format a20
col username format a15
col module format a20
col program format a25
col sql_id format a20
col sql_text format a20
select sql_id,STATUS , USERNAME , MODULE , PROGRAM, substr(SQL_TEXT,0,20) sql_text from v\\$sql_monitor where sql_id='$1' group by sql_id,STATUS , USERNAME , MODULE , PROGRAM, substr(SQL_TEXT,0,20) ;
exit;
END`


if [ -z "$MONITOR_OWNER" ]; then
echo "no object exists, please check again"
exit 0
else
echo '*******************************************'
echo " $MONITOR_OWNER "
echo '*******************************************'
fi


sqlplus -silent $DB_CONN_STR@$SH_DB_SID <<EOF
set long 99999
set pages 0
set linesize 200
col status format a20
col username format a30
col module format a20
col program format a20
col sql_id format a20
col sql_text format a50
col comm format a200
set long 999999
SELECT dbms_sqltune.report_sql_monitor(
sql_id => '$1',
report_level => 'ALL',
type=>'TEXT'
) comm
FROM dual;


EOF

如果要查看html格式的，直接替换上述标黄的部分为HTML即可。
生成的报告可读性很好，可以很容易看到瓶颈倒底在哪儿

SQL Monitoring Report

SQL Text

---

 

xxxxxxxxxxxxxx

Global Information: DONE (ALL ROWS)

---

Instance ID	:	1	Buffer Gets IO Requests Database Time Wait Activity . 90637 . . 1632 . . 11s . . . 100%
Session	:	xxxxxxxx (4940:57969)
SQL ID	:	cjqdgd14xjwjm
SQL Execution ID	:	16783859
Execution Started	:	07/17/2014 14:48:09
First Refresh Time	:	07/17/2014 14:48:15
Last Refresh Time	:	07/17/2014 14:48:20
Duration	:	11s
Module/Action	:	JDBC Thin Client/-
Service	:	SYS$USERS
Program	:	JDBC Thin Client
PL/SQL Entry Ids	:	2455820,1
PL/SQL Ids (Obj/Sub)	:	2455820,1
Fetch Calls	:	2

Binds

---

 

Name	Position	Type	Value
:B2	1	NUMBER	10308170
:B1	2	NUMBER	6

SQL Plan Monitoring Details (Plan Hash Value=1125972187)

---

 

Id		Operation	Name	Estimated Rows	Cost	Active Period (11s)	Execs	Rows	Memory (Max)	Temp (Max)	IO Requests	CPU Activity	Wait Activity
.	0	SELECT STATEMENT	.	.	.	. .	1	1	.	.		.	.
.	1	. SORT ORDER BY	.	6	67758	. .	1	1	2.0KB	.		.	.
.	2	.. COUNT STOPKEY	.	.	.	. .	1	1	.	.		.	.
.	3	... VIEW	xxxxxxxxxxxxx	577K	59898	. .	1	1	.	.		.	.
.	4	.... SORT UNIQUE STOPKEY	.	577K	59898	. .	1	1	2.0KB	.		.	.
.	5	..... UNION-ALL	.	.	.	. . .	1	1	.	.		.	.