Configuring Automated Maintenance Tasks

Enabling and Disabling Maintenance Tasks for all Maintenance Windows

You can disable a particular automated maintenance tasks for all maintenance windows with a single operation. You do so by calling the DISABLE procedure of the DBMS_AUTO_TASK_ADMIN PL/SQL package without supplying the window_name argument. For example, you can completely disable the Automatic SQL Tuning Advisor task as follows:

BEGIN
dbms_auto_task_admin.disable(
    client_name => 'sql tuning advisor',
    operation   => NULL,
    window_name => NULL);
END;

To enable this maintenance task again, use the ENABLE procedure, as follows:

BEGIN
dbms_auto_task_admin.enable(
    client_name => 'sql tuning advisor',
    operation   => NULL,
    window_name => NULL);
END;

The task names to use for the client_name argument are listed in the DBA_AUTOTASK_CLIENT database dictionary view.

To enable or disable all automated maintenance tasks for all windows, call the ENABLE or DISABLE procedure with no arguments.

EXECUTE DBMS_AUTO_TASK_ADMIN.DISABLE;

Enabling and Disabling Maintenance Tasks for Specific Maintenance Windows

By default, all maintenance tasks run in all predefined maintenance windows. You can disable a maintenance task for a specific window. The following example disables the Automatic SQL Tuning Advisor from running in the window MONDAY_WINDOW:

BEGIN
dbms_auto_task_admin.disable(
    client_name => 'sql tuning advisor', 
    operation   => NULL, 
    window_name => 'MONDAY_WINDOW');
END;