一直以为awr报告是statspack的替代品，其实在10g中你可以选择使用statspack还是awr，这两者是
同时存在的，而不是一者是另一者的替代。正是因为这个替代关系，所以在实际工作中，就产生了一个错误。
下面为演示过程，后面有一个小小的总结：
SQL> conn perfstat/perfstat
Connected.
SQL> @?/rdbms/admin/awrrpt.sql
Current Instance
~~~~~~~~~~~~~~~~
DB Id DB Name Inst Num Instance
----------- ------------ -------- ------------
1174647572 ORCL 1 orcl
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'
Enter value for report_type: html
Type Specified: html
Instances in this Workload Repository schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
DB Id Inst Num DB Name Instance Host
------------ -------- ------------ ------------ ------------
* 1174647572 1 ORCL orcl localhost
Using 1174647572 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: 1
Listing the last day's Completed Snapshots
Snap
Instance DB Name Snap Id Snap Started Level
------------ ------------ --------- ------------------ -----
orcl ORCL 1835 17 May 2008 00:00 1
1836 17 May 2008 01:00 1
1837 17 May 2008 02:00 1
1838 17 May 2008 03:00 1
1839 17 May 2008 04:00 1
1840 17 May 2008 05:00 1
1841 17 May 2008 06:00 1
1842 17 May 2008 07:00 1
1843 17 May 2008 08:00 1
1844 17 May 2008 09:00 1
1845 17 May 2008 10:00 1
1846 17 May 2008 11:00 1
Specify the Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Enter value for begin_snap: 1845
Begin Snapshot Id specified: 1845
Enter value for end_snap: 1846
End Snapshot Id specified: 1846
Specify the Report Name
~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is awrrpt_1_1845_1846.html. To use this name,
press to continue, otherwise enter an alternative.
Enter value for report_name:
Using the report name awrrpt_1_1845_1846.html
select output from table(dbms_workload_repository.awr_report_html( :dbid,
*
ERROR at line 1:
ORA-00904: : invalid identifier
Report written to awrrpt_1_1845_1846.html
SQL> conn /as sysdba
Connected.
SQL> @?/rdbms/admin/awrrpt.sql
Current Instance
~~~~~~~~~~~~~~~~
DB Id DB Name Inst Num Instance
----------- ------------ -------- ------------
1174647572 ORCL 1 orcl
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'
Enter value for report_type: html
Type Specified: html
Instances in this Workload Repository schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
DB Id Inst Num DB Name Instance Host
------------ -------- ------------ ------------ ------------
* 1174647572 1 ORCL orcl localhost
Using 1174647572 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: 1
Listing the last day's Completed Snapshots
Snap
Instance DB Name Snap Id Snap Started Level
------------ ------------ --------- ------------------ -----
orcl ORCL 1835 17 May 2008 00:00 1
1836 17 May 2008 01:00 1
1837 17 May 2008 02:00 1
1838 17 May 2008 03:00 1
1839 17 May 2008 04:00 1
1840 17 May 2008 05:00 1
1841 17 May 2008 06:00 1
1842 17 May 2008 07:00 1
1843 17 May 2008 08:00 1
1844 17 May 2008 09:00 1
1845 17 May 2008 10:00 1
1846 17 May 2008 11:00 1
Specify the Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Enter value for begin_snap: 1845
Begin Snapshot Id specified: 1845
Enter value for end_snap: 1846
End Snapshot Id specified: 1846
Specify the Report Name
~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is awrrpt_1_1845_1846.html. To use this name,
press to continue, otherwise enter an alternative.
Enter value for report_name:
Using the report name awrrpt_1_1845_1846.html
产生报告的过程省略......
Report written to awrrpt_1_1845_1846.html
总结
原以为awr报告是statspack的替代品，所以从而想当然产生awr报告是在perfstat用户下，其实实际并不是如此，产生awr报告需要sys用户来做。
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