SELECT dbid, baseline_name, baseline_type, moving_window_size from dba_hist_baseline;
DBID BASELINE_NAME BASELINE_TYPE MOVING_WINDOW_SIZE
---------- ---------------------------------------------------------------- ------------- ------------------
536511065 SYSTEM_MOVING_WINDOW MOVING_WINDOW 8
begin
dbms_workload_repository.modify_snapshot_settings(interval=>60,retention=>90*24*60);
end;
col RETENTION for a20
select * from dba_hist_wr_control;
DBID SNAP_INTERVAL RETENTION TOPNSQL
---------- --------------------------------------------------------------------------- -------------------- ----------
536511065 +00000 01:00:00.0 +00090 00:00:00.0 DEFAULT
select snap_id,
to_char(begin_interval_time, 'YYYY-MM-DD'),
to_char(end_interval_time, 'YYYY-MM-DD')
from dba_hist_snapshot
order by snap_id;
手动生成AWR：
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exec dbms_workload_repository.create_snapshot();
AWR数据存在sysaux表空间中
SQL> select OCCUPANT_NAME,OCCUPANT_DESC,SCHEMA_NAME,SPACE_USAGE_KBYTES/1024 "MB" from V$SYSAUX_OCCUPANTS WHERE OCCUPANT_NAME LIKE '%AWR%';
OCCUPANT_NAME OCCUPANT_DESC SCHEMA_NAME MB
-------------------- ------------------------------------------------------------ --------------- ----------
SM/AWR Server Manageability - Automatic Workload Repository SYS 216.81
SQL> select TABLE_NAME,PARTITION_NAME,TABLESPACE_NAME from dba_tab_partitions where table_name like 'WR%' and rownum <5;
TABLE_NAME PARTITION_NAME TABLESPACE_NAME
------------------------------ ------------------------------ ------------------------------
WRH$_ACTIVE_SESSION_HISTORY WRH$_ACTIVE_536511065_0 SYSAUX
WRH$_ACTIVE_SESSION_HISTORY WRH$_ACTIVE_SES_MXDB_MXSN SYSAUX
WRH$_DB_CACHE_ADVICE WRH$_DB_CACHE_AD_MXDB_MXSN SYSAUX
WRH$_DB_CACHE_ADVICE WRH$_DB_CAC_536511065_0 SYSAUX
awrddrpt.sql可以得到不同时间段的对比数据：
spawrrac.sql可以得到RAC 不同节点的数据对比分析
awrinfo.sql awr使用信息报告
标题名称：AWRoracle
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