oracle修改统计信息收集时间以及窗口持续时间

查看任务状态
select client_name,status from dba_autotask_client;
修改窗口执行开始时间和持续时间
begin
dbms_scheduler.disable( name => 'SUNDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."SUNDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=SUN;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."SUNDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'SUNDAY_WINDOW');
dbms_scheduler.disable( name => 'SATURDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."SATURDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=SAT;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."SATURDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'SATURDAY_WINDOW');
dbms_scheduler.disable( name => 'FRIDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."FRIDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=FRI;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."FRIDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'FRIDAY_WINDOW');
dbms_scheduler.disable( name => 'THURSDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."THURSDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=THU;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."TUESDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'THURSDAY_WINDOW');
dbms_scheduler.disable( name => 'WEDNESDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."WEDNESDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=WED;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."WEDNESDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'WEDNESDAY_WINDOW');
dbms_scheduler.disable( name => 'TUESDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."TUESDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=TUE;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."TUESDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'TUESDAY_WINDOW');
dbms_scheduler.disable( name => 'MONDAY_WINDOW', force => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."MONDAY_WINDOW"',attribute=>'REPEAT_INTERVAL',value=>'freq=daily;byday=MON;byhour=1;byminute=0; bysecond=0');
DBMS_SCHEDULER.SET_ATTRIBUTE(name=>'"SYS"."MONDAY_WINDOW"',attribute=>'DURATION',value=>numtodsinterval(240, 'minute'));
dbms_scheduler.enable( name => 'MONDAY_WINDOW');
end;
/

查看窗口执行时间和持续时间
select * from dba_scheduler_windows；

　查看历史执行情况

SELECT a.CLIENT_NAME,a.WINDOW_START_TIME,a.WINDOW_DURATION  FROM dba_autotask_client_history a WHERE client_name like '%stats%';