6. Execute this procedure call to create a window named DAYTIME that will
activate the DAYTIME plan:
exec dbms_scheduler.create_window(-window_name=>'daytime',resource_plan=>'daytime',-start_date=>trunc(systimestamp) + 6/24,repeat_interval=>'freq=daily',-duration=>'0 12:00:00',comments=>'daily at 6AM');This will open the window from now onward every morning at 6 o’clock, for
12 hours.
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