Oracle获取AWR和ASH

-- 找到指定的snap
select *
from (select * from dba_hist_snapshot order by snap_id desc) 
where rownum < 200;

-- AWR
SELECT * 
FROM TABLE(dbms_workload_repository.awr_report_html(
      (select dbid from v$database), 1,
       26663,  -- begin snap_id 
       26664   -- end snap_id 
      ));



select * from dba_hist_wr_control;
exec dbms_workload_repository.create_snapshot();
exec dbms_workload_repository.modify_baseline_window_size(8);
exec dbms_workload_repository.modify_snapshot_settings(interval => 30, retention => 16*24*60, topnsql => 50);
exec dbms_workload_repository.drop_snapshot_range(low_snap_id => 6770,high_snap_id => 6774,dbid => 7059638244);

begin
    dbms_workload_repository.create_snapshot();
end;

-- ASH
SELECT * 
FROM TABLE(dbms_workload_repository.ash_report_html(
     (select dbid from v$database), 1,
       SYSDATE - 30 / (24 * 60),   -- begin datetime
       SYSDATE - 10 / (24 * 60)    -- end
     ));

SELECT * 
FROM TABLE(dbms_workload_repository.ash_report_html(
     (select dbid from v$database), 1,
       to_date('2015-11-15 20:10:00', 'yyyy-mm-dd hh24:mi:ss'),   -- begin datetime
       to_date('2015-11-15 20:30:00', 'yyyy-mm-dd hh24:mi:ss')    -- end
     ));

-- ADDM
select * from dba_advisor_tasks s order by  s.created desc

-- sqlplus设置参数
set long 1000000 pagesize 0 longchunksize 1000 
 
select dbms_advisor.get_task_report('ADDM:2199108538_1_26664') from dual;

select * from v$active_session_history t where ROWNUM < 20;

SELECT *
FROM (
    SELECT * FROM v$active_session_history t
    WHERE t.sample_time BETWEEN
          TO_DATE('2016-05-04 10:10:00', 'yyyy-mm-dd hh24:mi:ss')
       AND TO_DATE('2016-05-04 10:20:00', 'yyyy-mm-dd hh24:mi:ss')
    ORDER BY t.SAMPLE_TIME
) t
WHERE ROWNUM < 20;

select * from dba_hist_active_sess_history t where rownum < 20;

SELECT *
FROM (
    SELECT * FROM dba_hist_active_sess_history t
    WHERE t.sample_time BETWEEN TO_DATE('2016-05-04 10:10:00', 'yyyy-mm-dd hh24:mi:ss')
            AND TO_DATE('2016-05-04 10:20:00', 'yyyy-mm-dd hh24:mi:ss')
    ORDER BY t.SAMPLE_TIME
) t
WHERE ROWNUM < 20;