AWR报告对于性能分析至关重要，学习他的生成与查看，分析也很有必要！

当然有使用oracle工具的生成方法，很简单明了，如：toad

database-monitor-ADDM/AWR report 

我们也可以直接用命令生成：

首先进入

[oracle@oracle admin]$ cd /u01/oracle/rdbms/admin
[oracle@oracle admin]$ cd /
[oracle@oracle /]$ cd /u01/oracle/rdbms/admin
[oracle@oracle admin]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Sun Jan 16 17:09:04 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> @awrrpt

Current Instance
~~~~~~~~~~~~~~~~

   DB Id    DB Name      Inst Num Instance
----------- ------------ -------- ------------
 1579497439 ORACLE              1 oracle

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'

Type Specified:  text

Instances in this Workload Repository schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

   DB Id     Inst Num DB Name      Instance     Host
------------ -------- ------------ ------------ ------------
* 1579497439        1 ORACLE       oracle       oracle

Using 1579497439 for database Id
Using          1 for instance number

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 without
specifying a number lists all completed snapshots.

Enter value for num_days: 11

Listing the last 11 days of Completed Snapshots

                                                        Snap
Instance     DB Name        Snap Id    Snap Started    Level
------------ ------------ --------- ------------------ -----
oracle       ORACLE             284 10 Jan 2011 15:01      1

                                285 10 Jan 2011 16:26      1
                                286 10 Jan 2011 17:00      1

                                287 11 Jan 2011 15:24      1
                                288 11 Jan 2011 16:00      1
                                289 11 Jan 2011 17:00      1
                                290 11 Jan 2011 20:50      1

                                291 13 Jan 2011 23:49      1

                                292 14 Jan 2011 13:59      1
                                293 14 Jan 2011 15:00      1

                                294 14 Jan 2011 16:00      1
                                295 14 Jan 2011 17:00      1

                                296 16 Jan 2011 10:58      1
                                297 16 Jan 2011 12:00      1
                                298 16 Jan 2011 13:00      1
                                299 16 Jan 2011 14:00      1
                                300 16 Jan 2011 15:00      1
                                301 16 Jan 2011 16:00      1
                                302 16 Jan 2011 17:00      1

Specify the Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Enter value for begin_snap: 287
Begin Snapshot Id specified: 287

Enter value for end_snap: 289

当然也可以选择HTML的方式。

生成的报告保存在/u01/oracle/rdbms/admin下