Oracle 11G统计信息自动收集及调整
发布时间：2021-03-04 20:30:06 所属栏目：百科 来源：网络整理
导读：副标题#e# 查询统计信息的收集所对应的task,以及当前状态 col CLIENT_NAME for a50 col TASK_NAME for a20 SELECT client_name,task_name,status FROM dba_autotask_task WHERE client_name = ‘auto optimizer stats collection‘;auto optimizer stats co
|
副标题[/!--empirenews.page--]
查询统计信息的收集所对应的task,以及当前状态 col CLIENT_NAME for a50 CLIENT_NAME TASK_NAME STATUS --------------- ------------------ ----------------- ------- auto optimizer stats collection gather_stats_prog ENABLED select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production PL/SQL Release 11.2.0.4.0 - Production CORE 11.2.0.4.0 Production TNS for Linux: Version 11.2.0.4.0 - Production NLSRTL Version 11.2.0.4.0 - Production 下面查询dba_scheduler_programs col PROGRAM_ACTION for a50 PROGRAM_ACTION NUMBER_OF_ARGUMENTS ENABL -------------------------------------------------- ------------------- ----- dbms_stats.gather_database_stats_job_proc 0 TRUE 2、查看自动收集统计信息是否开启 SELECT CLIENT_NAME,STATUS FROM DBA_AUTOTASK_CLIENT WHERE CLIENT_NAME = ‘auto optimizer stats collection‘; CLIENT_NAME STATUS ---------------------------------------------------------------- -------- auto optimizer stats collection ENABLED 统计信息收集的窗口组，如下查询 SELECT window_group FROM dba_autotask_client WHERE client_name = ‘auto optimizer stats collection‘; WINDOW_GROUP ---------------------------------------------------------------- ORA$AT_WGRP_OS 查询统计信息收集的具体窗口 col REPEAT_INTERVAL for a60 WINDOW_NAME REPEAT_INTERVAL DURATION ENABL ------------------------------ ------------------------------------------------------------ ------------------------------ ----- MONDAY_WINDOW freq=daily;byday=MON;byhour=22;byminute=0; bysecond=0 +000 04:00:00 TRUE TUESDAY_WINDOW freq=daily;byday=TUE;byhour=22;byminute=0; bysecond=0 +000 04:00:00 TRUE WEDNESDAY_WINDOW freq=daily;byday=WED;byhour=22;byminute=0; bysecond=0 +000 04:00:00 TRUE THURSDAY_WINDOW freq=daily;byday=THU;byhour=22;byminute=0; bysecond=0 +000 04:00:00 TRUE FRIDAY_WINDOW freq=daily;byday=FRI;byhour=22;byminute=0; bysecond=0 +000 04:00:00 TRUE SATURDAY_WINDOW freq=daily;byday=SAT;byhour=6;byminute=0; bysecond=0 +000 20:00:00 TRUE SUNDAY_WINDOW freq=daily;byday=SUN;byhour=6;byminute=0; bysecond=0 +000 20:00:00 TRUE 查看自动收集统计信息历史执行情况 SELECT * FROM dba_autotask_client_history WHERE client_name LIKE ‘%stats%‘; CLIENT_NAME WINDOW_NAME WINDOW_START_TIME WINDOW_DURATION JOBS_CREATED JOBS_STARTED JOBS_COMPLETED WINDOW_END_TIME ---------------------------------------------------------------- ----------------------------------------------------------------- -------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------ ------------ -------------- -------------------------------------------------------------------------------- auto optimizer stats collection WEDNESDAY_WINDOW 24-APR-19 10.00.00.084731 PM +08:00 +000000000 03:59:59.989882 1 1 1 25-APR-19 02.00.00.074613 AM +08:00 auto optimizer stats collection THURSDAY_WINDOW 25-APR-19 10.00.00.075150 PM +08:00 +000000000 03:59:59.973396 1 1 1 26-APR-19 02.00.00.048546 AM +08:00 auto optimizer stats collection FRIDAY_WINDOW 26-APR-19 10.00.00.088460 PM +08:00 +000000000 03:59:59.986848 1 1 1 27-APR-19 02.00.00.075308 AM +08:00 auto optimizer stats collection SATURDAY_WINDOW 27-APR-19 06.00.02.066587 AM +08:00 +000000000 19:59:58.014463 5 5 5 28-APR-19 02.00.00.081050 AM +08:00 auto optimizer stats collection SUNDAY_WINDOW 28-APR-19 06.00.00.180330 AM +08:00 +000000000 19:59:59.883249 5 5 5 29-APR-19 02.00.00.063579 AM +08:00 auto optimizer stats collection MONDAY_WINDOW 29-APR-19 10.00.00.071791 PM +08:00 +000000000 04:00:00.027280 1 1 1 30-APR-19 02.00.00.099071 AM +08:00 auto optimizer stats collection TUESDAY_WINDOW 30-APR-19 10.00.00.093139 PM +08:00 +000000000 03:59:59.989633 1 1 1 01-MAY-19 02.00.00.082772 AM +08:00 auto optimizer stats collection WEDNESDAY_WINDOW 01-MAY-19 10.00.00.104952 PM +08:00 +000000000 03:59:59.971842 1 1 1 02-MAY-19 02.00.00.076794 AM +08:00 auto optimizer stats collection THURSDAY_WINDOW 02-MAY-19 10.00.01.068409 PM +08:00 +000000000 03:59:58.983145 1 1 1 03-MAY-19 02.00.00.051554 AM +08:00 auto optimizer stats collection FRIDAY_WINDOW 03-MAY-19 10.00.00.077000 PM +08:00 +000000000 03:59:59.993378 1 1 1 04-MAY-19 02.00.00.070378 AM +08:00 auto optimizer stats collection SATURDAY_WINDOW 04-MAY-19 06.00.01.062949 AM +08:00 +000000000 19:59:59.018980 5 5 5 05-MAY-19 02.00.00.081929 AM +08:00 auto optimizer stats collection SUNDAY_WINDOW 05-MAY-19 06.00.00.073691 AM +08:00 +000000000 20:00:01.010166 5 5 5 06-MAY-19 02.00.01.083857 AM +08:00 auto optimizer stats collection MONDAY_WINDOW 06-MAY-19 10.00.00.090751 PM +08:00 +000000000 03:59:59.989213 1 1 1 07-MAY-19 02.00.00.079964 AM +08:00 auto optimizer stats collection TUESDAY_WINDOW 07-MAY-19 10.00.00.064104 PM +08:00 +000000000 04:00:00.016201 1 1 1 08-MAY-19 02.00.00.080305 AM +08:00 auto optimizer stats collection WEDNESDAY_WINDOW 08-MAY-19 10.00.00.065315 PM +08:00 +000000000 04:00:00.018545 1 1 1 09-MAY-19 02.00.00.083860 AM +08:00 auto optimizer stats collection THURSDAY_WINDOW 09-MAY-19 10.00.00.073837 PM +08:00 +000000000 03:59:59.980112 1 1 1 10-MAY-19 02.00.00.053949 AM +08:00 auto optimizer stats collection FRIDAY_WINDOW 10-MAY-19 10.00.00.074381 PM +08:00 +000000000 03:59:59.999777 1 1 1 11-MAY-19 02.00.00.074158 AM +08:00 auto optimizer stats collection SATURDAY_WINDOW 11-MAY-19 06.00.01.071340 AM +08:00 +000000000 19:59:59.004645 5 5 5 12-MAY-19 02.00.00.075985 AM +08:00 auto optimizer stats collection SUNDAY_WINDOW 12-MAY-19 06.00.01.066112 AM +08:00 +000000000 19:59:59.015558 5 5 5 13-MAY-19 02.00.00.081670 AM +08:00 auto optimizer stats collection MONDAY_WINDOW 13-MAY-19 10.00.01.074773 PM +08:00 +000000000 03:59:58.975154 1 1 1 14-MAY-19 02.00.00.049927 AM +08:00 CLIENT_NAME WINDOW_NAME WINDOW_START_TIME WINDOW_DURATION JOBS_CREATED JOBS_STARTED JOBS_COMPLETED WINDOW_END_TIME ---------------------------------------------------------------- ----------------------------------------------------------------- -------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------ ------------ -------------- -------------------------------------------------------------------------------- auto optimizer stats collection TUESDAY_WINDOW 14-MAY-19 10.00.00.098044 PM +08:00 +000000000 03:59:59.951603 1 1 1 15-MAY-19 02.00.00.049647 AM +08:00 auto optimizer stats collection WEDNESDAY_WINDOW 15-MAY-19 10.00.00.099538 PM +08:00 +000000000 03:59:59.989331 1 1 1 16-MAY-19 02.00.00.088869 AM +08:00 auto optimizer stats collection THURSDAY_WINDOW 16-MAY-19 10.00.00.107495 PM +08:00 +000000000 03:59:59.938235 1 1 1 17-MAY-19 02.00.00.045730 AM +08:00 auto optimizer stats collection FRIDAY_WINDOW 17-MAY-19 10.00.00.084708 PM +08:00 +000000000 03:59:59.985142 1 1 1 18-MAY-19 02.00.00.069850 AM +08:00 auto optimizer stats collection SATURDAY_WINDOW 18-MAY-19 06.00.01.090394 AM +08:00 +000000000 19:59:58.980792 5 5 5 19-MAY-19 02.00.00.071186 AM +08:00 auto optimizer stats collection SUNDAY_WINDOW 19-MAY-19 06.00.01.075840 AM +08:00 +000000000 19:59:58.978655 5 5 5 20-MAY-19 02.00.00.054495 AM +08:00 auto optimizer stats collection MONDAY_WINDOW 20-MAY-19 10.00.00.109763 PM +08:00 +000000000 03:59:59.956340 1 1 1 21-MAY-19 02.00.00.066103 AM +08:00 auto optimizer stats collection TUESDAY_WINDOW 21-MAY-19 10.00.00.081639 PM +08:00 +000000000 03:59:59.965244 1 1 1 22-MAY-19 02.00.00.046883 AM +08:00 auto optimizer stats collection WEDNESDAY_WINDOW 22-MAY-19 10.00.01.060724 PM +08:00 +000000000 03:59:59.041174 1 1 1 23-MAY-19 02.00.00.101898 AM +08:00 auto optimizer stats collection THURSDAY_WINDOW 23-MAY-19 10.00.00.092859 PM +08:00 +000000000 03:59:59.978915 1 1 1 24-MAY-19 02.00.00.071774 AM +08:00 30 rows selected 统计信息收集调度时间禁用及修改1、启用自动收集统计信息 BEGIN DBMS_AUTO_TASK_ADMIN.ENABLE(client_name => ‘auto optimizer stats collection‘,operation => NULL,window_name => NULL); END; （编辑：南平站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
