10G自动收集统计信息修改

col WINDOW_NAME for a20
col REPEAT_INTERVAL for a60
col DURATION for a30
set linesize 120
SELECT t1.window_name, t1.repeat_interval, t1.duration,enabled
FROM dba_scheduler_windows t1, dba_scheduler_wingroup_members t2
WHERE t1.window_name = t2.window_name
AND t2.window_group_name IN
('MAINTENANCE_WINDOW_GROUP', 'BSLN_MAINTAIN_STATS_SCHED');
# WINDOW_NAME：任务名
# REPEAT_INTERVAL：任务重复间隔时间
# DURATION：持续时间
##查看自动收集统计信息的任务及状态：
select job_name,schedule_name,enabled,last_start_date,last_run_duration,next_run_date  
from dba_scheduler_jobs a
where job_name = 'GATHER_STATS_JOB'

BEGIN
DBMS_SCHEDULER.DISABLE(
name=>'"SYS"."WEEKNIGHT_WINDOW"',
force=>TRUE);
END;
/
BEGIN
DBMS_SCHEDULER.DISABLE(
name=>'"SYS"."WEEKEND_WINDOW"',
force=>TRUE);
END;
/

--修改WEEKEND_WINDOW的配置 (改成和WEEKNIGHT_WINDOW相同,即周一~周五,每日的22:00向后8小时,至次日凌晨6点)
begin
dbms_scheduler.set_attribute('WEEKEND_WINDOW','REPEAT_INTERVAL','freq=daily;byday=SAT,SUN;byhour=22;byminute=0;bysecond=0');
dbms_scheduler.set_attribute('WEEKEND_WINDOW','DURATION','+000 08:00:00');
end;
/
--若要还原成以前默认设置,可执行如下
--周末两天都是全天:
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;
/

BEGIN
DBMS_SCHEDULER.ENABLE(
name=>'"SYS"."WEEKNIGHT_WINDOW"');
END;
/
BEGIN
DBMS_SCHEDULER.ENABLE(
name=>'"SYS"."WEEKEND_WINDOW"');
END;
/