概述
awrddrpt.sql脚本位于$ORACLE_HOME/rdbms/admin目录中。
awrddrpt.sql脚本比较两个时间段的AWR报告。
这个脚本的交互部分最重要的就是需要输入要进行对比的两个awr报告的begin snap_id与end snap_id
一旦收集到四个快照号码，awrddrpt.sql脚本将创建两个AWR报告，然后比较这两个报告。awrddrpt.sql脚本对于比较两个经过时间段内的性能非常有用。
示例
我们打算比对3月30号00:00~01:00 和 3月31号00:00~01:00这两个时间段的AWR
以oracle用户登录到数据库主机执行脚本
.....
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
Last login: Sat Mar 31 09:48:24 2018 from 172.25.21.204
Oracle Corporation SunOS 5.10 Generic Patch January 2005
You have new mail.
##处于安全的考虑，以nolog的方式登录
ocsdb01:[/oracle$]sqlplus /nolog
SQL*Plus: Release 11.2.0.4.0 Production on Sat Mar 31 11:23:08 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
## 登录特定的用户,输入密码
SQL> connect cc@PR_CC
Enter password:
Connected.
## 执行awrddrpt脚本
SQL> @?/rdbms/admin/awrddrpt
Current Instance
~~~~~~~~~~~~~~~~
DB Id DB Id DB Name Inst Num Inst Num Instance
----------- ----------- ------------ -------- -------- ------------
2143881171 2143881171 CC 1 1 cc
Specify the Report Type
~~~~~~~~~~~~~~~~~~~~~~~
Would you like an HTML report, or a plain text report?
Enter 'html' for an HTML report, or 'text' for plain text
Defaults to 'html'
## 默认html
Enter value for report_type:
Type Specified: html
Instances in this Workload Repository schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
DB Id Inst Num DB Name Instance Host
------------ -------- ------------ ------------ ------------
* 2143881171 1 CC cc ocsdb01
Database Id and Instance Number for the First Pair of Snapshots
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using 2143881171 for Database Id for the first pair of snapshots
Using 1 for Instance Number for the first pair of snapshots
Specify the number of days of snapshots to choose from
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Entering the number of days (n) will result in the most recent
(n) days of snapshots being listed. Pressing <return> without
specifying a number lists all completed snapshots.
#因为今天是31号,我们只需要输入2天时间范围就可以获取到3月30号00:00~01:00的快照
Enter value for num_days: 2
Listing the last 2 days of Completed Snapshots
Snap
Instance DB Name Snap Id Snap Started Level
------------ ------------ --------- ------------------ -----
cc CC 10080 30 Mar 2018 00:00 1
10081 30 Mar 2018 01:00 1
10082 30 Mar 2018 02:00 1
10083 30 Mar 2018 03:00 1
10084 30 Mar 2018 04:00 1
10085 30 Mar 2018 05:00 1
10086 30 Mar 2018 06:00 1
10087 30 Mar 2018 07:00 1
10088 30 Mar 2018 08:00 1
10089 30 Mar 2018 09:00 1
10090 30 Mar 2018 10:00 1
10091 30 Mar 2018 11:00 1
10092 30 Mar 2018 12:00 1
10093 30 Mar 2018 13:00 1
10094 30 Mar 2018 14:00 1
10095 30 Mar 2018 15:00 1
10096 30 Mar 2018 16:00 1
10097 30 Mar 2018 17:00 1
10098 30 Mar 2018 18:00 1
10099 30 Mar 2018 19:00 1
10100 30 Mar 2018 20:00 1
10101 30 Mar 2018 21:00 1
10102 30 Mar 2018 22:00 1
10103 30 Mar 2018 23:00 1
10104 31 Mar 2018 00:00 1
10105 31 Mar 2018 01:00 1
10106 31 Mar 2018 02:00 1
10107 31 Mar 2018 03:00 1
10108 31 Mar 2018 04:00 1
10109 31 Mar 2018 05:00 1
10110 31 Mar 2018 06:00 1
10111 31 Mar 2018 07:00 1
10112 31 Mar 2018 08:00 1
10113 31 Mar 2018 09:00 1
10114 31 Mar 2018 10:00 1
10115 31 Mar 2018 11:00 1
Specify the First Pair of Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
## 选择开始的快照
Enter value for begin_snap: 10080
First Begin Snapshot Id specified: 10080
## 选择结束的快照
Enter value for end_snap: 10081
First End Snapshot Id specified: 10081
Instances in this Workload Repository schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
DB Id Inst Num DB Name Instance Host
------------ -------- ------------ ------------ ------------
* 2143881171 1 CC cc ocsdb01
Database Id and Instance Number for the Second Pair of Snapshots
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using 2143881171 for Database Id for the second pair of snapshots
Using 1 for Instance Number for the second pair of snapshots
Specify the number of days of snapshots to choose from
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Entering the number of days (n) will result in the most recent
(n) days of snapshots being listed. Pressing <return> without
specifying a number lists all completed snapshots.
#因为今天是31号,我们只需要输入1天时间范围就可以获取到3月31号00:00~01:00
Enter value for num_days2: 1
Listing the last day's Completed Snapshots
Snap
Instance DB Name Snap Id Snap Started Level
------------ ------------ --------- ------------------ -----
cc CC 10104 31 Mar 2018 00:00 1
10105 31 Mar 2018 01:00 1
10106 31 Mar 2018 02:00 1
10107 31 Mar 2018 03:00 1
10108 31 Mar 2018 04:00 1
10109 31 Mar 2018 05:00 1
10110 31 Mar 2018 06:00 1
10111 31 Mar 2018 07:00 1
10112 31 Mar 2018 08:00 1
10113 31 Mar 2018 09:00 1
10114 31 Mar 2018 10:00 1
10115 31 Mar 2018 11:00 1
Specify the Second Pair of Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
## 选择开始的快照
Enter value for begin_snap2: 10104
Second Begin Snapshot Id specified: 10104
## 选择结束的快照
Enter value for end_snap2: 10105
Second End Snapshot Id specified: 10105
Specify the Report Name
~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is awrdiff_1_10080_1_10104.html To use this name,
press <return> to continue, otherwise enter an alternative.
## 输入awr报告名称
Enter value for report_name: artisan_awr_diff_rpt
Using the report name artisan_awr_diff_rpt
......省略输出过程
......
......
</body></html>
Report written to artisan_awr_diff_rpt
## 退出
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ocsdb01:[/oracle$]
## 当前目录下查找输出的报告
ocsdb01:[/oracle$]ls artisan_awr_diff_rpt*
artisan_awr_diff_rpt.lst
ocsdb01:[/oracle$]
查看报告
本文标题：Oracle-awrddrpt.sql比较两个AWR差异报告
本文链接：https://blog.quwenai.cn/post/6267.html
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