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I have oracle 11g enterprise edition. My current server time stamp is 2:00 PM EST . When i run awrrpt.sql .The last snapshot time is showing as 11:00 AM EST .How can i correct awr setting so to gather

Posted on 2014-12-09
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I have oracle 11g enterprise edition. My current server time stamp is 2:00 PM EST . When i run awrrpt.sql .The last snapshot time is showing as 11:00 AM EST .How can i correct awr setting so to gather the report upto 1 hr before the current server time
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Question by:gaurav kumar sinha
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Mark Geerlings earned 2000 total points
ID: 40490002
The default snapshot interval in Oracle11 is 30 minutes.  So, someone has changed the snapshot interval in your database from the default value (possibly to reduce the amount of space consumed by the tables that hold this snapshot data).  
You can either initiate a snapshot manually at a particular time or you can change the interval to a shorter time period (but then be aware that you may need more space to accomodate this data).

To create a snapshot manually, run:
execute dbms_workload_repository.create_snapshot;

Or to change the interval and the retention period, you could use this command:

In this example the retention period is specified as 3 years (1,576,800 minutes) and the interval between each snapshot is 60 minutes.

execute dbms_workload_repository.modify_snapshot_settings (interval => 60, retention => 1576800);

(Thanks to Don Burleson for these tips.  See: http://www.dba-oracle.com/t_awr_automatic_snapshot_settings_modify.htm)
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