使用awrextr.sql导出awr原始数据

1、AWR原始数据与AWR报告的差别

AWR原始数据：

是oracle数据库mmon进程定期将统计量从内存转储至磁盘，并以结构化的形式存入若干张表组成自己主动工作负荷存储仓库（AutomaticWorkload repository﹐简写为AWR）的原始数据，有经验的DBA能够自由的查询所须要的历史数据

AWR报告：

使用awrrpt.sql、awrrpti.sql、awrddrpt.sql、awrddrpi.sql所生成的为AWR报告，一般为保存为HTML或TXT格式文件，使用Toad等工具生成的AWR报告也是通过调用上面几个sql脚本所生成的。我们所示是已经分析好或已经排版好了的在一段时间内的报告文件

2、AWR原始数据导出的意义

（1）起到备份的作用

（2）导出后，导入到其他数据库中进行深度分析

3、awrextr.sql存放位置

（1）存放路径：$ORACLE_HOME/rdbms/admin

（2）查看存在情况

[root@INFA ~]# su - oracle

[oracle@INFA ~]$ cd $ORACLE_HOME/rdbms/admin

[oracle@INFA admin]$ ls -l |grep awrextr.sql

-rw-r--r--. 1 oracle oinstall 11082 Mar 24 2009 awrextr.sql

4、使用awrextr.sql前提条件准备（创建directory）

使用awrextr.sql，数据库中必须具有directory

4.1 在操作系统上创建directory的文件夹

[root@INFA ~]# mkdir -p /u01/awr_extr

[root@INFA ~]# chown -R oracle:oinstall /u01/awr_extr

4.2 在数据库上创建directory

SQL> create directory awr_extr as '/u01/awr_extr';

Directory created.

5、使用awrextr.sql导出awr数据

SQL> @?/rdbms/admin/awrextr.sql

~~~~~~~~~~~~~

AWR EXTRACT

~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~ This script will extract the AWR data for a range of snapshots ~

~ into a dump file. The script will prompt users for the ~

~ following information: ~

~ (1) database id ~

~ (2) snapshot range to extract ~

~ (3) name of directory object ~

~ (4) name of dump file ~

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Databases in this Workload Repository schema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DB Id DB Name Host

------------ ------------ ------------

* 3248492087 INFADB INFA

1542553735 CRMOUT TSRRAC01

1542553735 CRMOUT TSRRAC02

The default database id is the local one: '3248492087'. To use this

database id, press <return> to continue, otherwise enter an alternative.

Enter value for dbid: --输入需导出AWR数据库的DBID

Using 3248492087 for Database ID

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.

Enter value for num_days: --输入须要导出AWR数据所选择的天数

Listing the last day's Completed Snapshots

DB Name Snap Id Snap Started

------------ --------- ------------------

INFADB 612 03 Aug 2014 00:06

613 03 Aug 2014 00:15

614 03 Aug 2014 00:30

615 03 Aug 2014 00:45

616 03 Aug 2014 01:00

617 03 Aug 2014 01:15

618 03 Aug 2014 01:30

619 03 Aug 2014 01:45

620 03 Aug 2014 02:00

621 03 Aug 2014 02:15

Specify the Begin and End Snapshot Ids

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Enter value for begin_snap: --选择開始snap_id号

Begin Snapshot Id specified: 612

Enter value for end_snap: 620
--选择结束snap_id号

End Snapshot Id specified: 620

Specify the Directory Name

~~~~~~~~~~~~~~~~~~~~~~~~~~

Directory Name Directory Path

------------------------------ -------------------------------------------------

AWR_EXTR /u01/awr_extr

DATA_PUMP_DIR /dba/oracle/admin/infadb/dpdump/

EXPDP_DIR /u01/expdp_dir

ORACLE_OCM_CONFIG_DIR /dba/oracle/product/11.2.0/db_1/ccr/state

XMLDIR /dba/oracle/product/11.2.0/db_1/rdbms/xml

Choose a Directory Name from the above list (case-sensitive).

Enter value for directory_name: AWR_EXTR --输入存放导出dump档的directory名称

Using the dump directory: AWR_EXTR

Specify the Name of the Extract Dump File

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The prefix for the default dump file name is awrdat_612_620.

To use this name, press <return> to continue, otherwise enter

an alternative.

Enter value for file_name: awr_dump_612_620 --输入dump档名称，注意仅仅要带.dmp后缀

Using the dump file prefix: awr_dump_612_620

| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| The AWR extract dump file will be located

| in the following directory/file:

| /u01/awr_extr

| awr_dump_612_620.dmp --dump文件名自己主动带上了.dmp后缀

| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| *** AWR Extract Started ...

| This operation will take a few moments. The

| progress of the AWR extract operation can be

| monitored in the following directory/file:

| /u01/awr_extr

| awr_dump_612_620.log

End of AWR Extract

SQL>

6、查看dump文件是否存在

[oracle@INFA ~]$ cd /u01/awr_extr

[oracle@INFA awr_extr]$ ls -l

total 12780

-rw-r-----. 1 oracle oinstall 13058048 Aug 3 02:18 awr_dump_612_620.dmp

-rw-r--r--. 1 oracle oinstall 25359 Aug 3 02:18 awr_dump_612_620.log

不仅看到了导出的dmp文件，还看到了导出的log文件，导出成功。

本文作者：黎俊杰（网名：踩点），从事”系统架构、操作系统、存储设备、数据库、中间件、应用程序“六个层面系统性的性能优化工作

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