适用于11g与12c
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11g的是 周一到周五 22：00-2：00 周六周日 6：00-4：00
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SELECT w.window_name, w.repeat_interval, w.duration, w.enabled
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FROM dba_autotask_window_clients c, dba_scheduler_windows w
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WHERE c.window_name = w.window_name
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AND c.optimizer_stats = 'ENABLED';
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查看job
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select client_name,status from dba_autotask_client;
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禁用自动收集
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exec DBMS_AUTO_TASK_ADMIN.DISABLE(client_name => 'auto optimizer stats collection',operation => NULL,window_name => NULL);
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启用自动收集
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exec DBMS_AUTO_TASK_ADMIN.ENABLE(client_name => 'auto optimizer stats collection',operation => NULL,window_name => NULL)
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