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  Oracle Tips by Burleson

Easy Oracle Automation
Chapter 4 -
Automatic Workload Repository and Automatic Database Diagnostic Monitor

AWR Snapshots

To verify the frequency of these snapshots, issue the following command:

SQL>  select snap_interval, retention
                 from dba_hist_wr_control;

------------------------- -------------------------
+00000 01:00:00.0         +00007 00:00:00.0

To change the settings for snapshot intervals of 30 minutes and a retention period of 30 days, issue the following command. The retention parameters are specified in minutes:

   dbms_workload_repository.modify_snapshot_settings (
      interval => 30,
      retention => 30*24*60

The above text is an excerpt from:

Easy Oracle Automation
Oracle10g Automatic Storage, Memory and Diagnostic Features

ISBN 0-9745993-6-0

by Dr. Arun Kumar R.

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