--DBMS_SCHEDULER 运行信息
select job_name,state,enabled,to_char(last_start_date,'yyyy-mm-dd hh24:mi:ss'), schedule_name
from dba_scheduler_jobs;
--DBMS_SCHEDULER运行成功与否信息
SELECT log_id, job_name, status,TO_CHAR(ACTUAL_START_DATE,'yyyy-mm-dd HH24:MI:ss') start_date,
           TO_CHAR (log_date, 'yyyy-mm-dd HH24:MI:ss') log_date
      FROM dba_scheduler_job_run_details
     WHERE job_name = 'GATHER_STATS_JOB'
     order by 4 DESC;
--查询执行时间情况
select t1.window_name,t1.repeat_interval,t1.duration from dba_scheduler_windows t1,dba_scheduler_wingroup_members t2
 where t1.window_name=t2.window_name and t2.window_group_name='MAINTENANCE_WINDOW_GROUP';
--修改执行时间
begin
dbms_scheduler.set_attribute('WEEKEND_WINDOW','REPEAT_INTERVAL','freq=daily;byday=SAT;byhour=0;byminute=0;bysecond=0');
dbms_scheduler.set_attribute('WEEKEND_WINDOW','DURATION','+002 00:00:00');
end;