To get information before one month

Question

Hi,
All,
I have 10.2.0.3 database on AIX.
I try to create AWR report but there no snapshot available there. what are other alternative to get information before a month.
Thanks,
Vishal

Answer 1

What are you doing and where?
Run the following to find out for sure:
set pagesize 0
set linesize 121
col instart_fmt noprint;
col inst_name format a12 heading 'Instance';
col db_name format a12 heading 'DB Name';
col snap_id format 99999990 heading 'Snap Id';
col snapdat format a18 heading 'Snap Started' just c;
col lvl format 99 heading 'Snap|Level';
set heading on;
break on inst_name on db_name on host on instart_fmt skip 1;
ttitle off;
SELECT TO_CHAR(s.startup_time,' DD MON "at" HH24:MI:SS') INSTART_FMT,
di.instance_name INST_NAME, di.db_name DB_NAME, s.snap_id SNAP_ID,
TO_CHAR(s.end_interval_time,'DD MON YYYY HH24:MI') SNAPDAT,
s.snap_level LVL
FROM dba_hist_snapshot s, dba_hist_database_instance di
WHERE di.dbid = s.dbid
AND di.instance_number = s.instance_number
AND di.startup_time = s.startup_time
ORDER BY snap_id;Taken from the AWR entry in Morgan's Library at www.psoug.org.
If you need to change the snapshot retention window then look in the library for DBMS_WORKLOAD_REPOSITORY and the MODIFY_SNAPSHOT_SETTINGS procedure. You can set snapshot interval and retention.