You can schedule any database maintenance task to run in the future.
From the left-hand pane, click Administration.
In the right-hand pane, under Database Maintenance Tasks, select a task.
Click the Schedule button.
At the Schedule Maintenance Task window, enter the Date and Time that the task must first run. If you want it to run once only, click OK. If you want to run it repeatedly, proceed to the next steps.
Tick the Repeat scheduled run box.
From the drop-down menu, choose the Repeat Interval you require and from the Repeat Every menu, choose the frequency with which you want it to repeat.
Choose the length of the repeating schedule by selecting one of the radio buttons.
Click OK.