List AWR Snapshots

Oracle Database Tips by Donald BurlesonUpdated: 6 May 2013

Question: I want to be able to display the times for all of my AWR snapshots without issuing the AWR report (awrrpt.sql) command. What dba_hist view contains a list of all of the AWR snapshots on my database?

Answer: While the standard AWR report (awrrpt.sql) will list the snapshots to choose from, you can manually list all of the AWR snapshots and the time of each AWR snapshot.

Here is how to take an AWR snapshot:

SQL > exec dbms_workload_repository.create_snapshot;

This script will list all AWR snapshots in Linux, Windows or UNIX::

set lines 100 pages 999

select snap_id,
snap_level,
to_char(begin_interval_time, 'dd/mm/yy hh24:mi:ss') begin
from
dba_hist_snapshot
order by 1;

Also see MOSC note 1301503.1: "Troubleshooting: AWR Snapshot Collection issues"

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