The Schedule object provides additional support for creating recurring items (items that occur on a regular basis) for many of its table types. For example, you can set a recurring appointment for every Friday at 1 p.m. When programming with Schedule+ objects, recurring items are handled differently from single items, which only occur once.
It is possible for recurring items to have no defined end date. In this case, there could be an infinite number of items. Because Schedule+ cannot store an infinite number of recurring items, it stores a recurring item as a recurrence pattern.
In addition, because recurring items are stored as patterns, they have a different structure from single items and are kept in a separate table. In the case of appointments, recurring appointments are stored in the RecurringAppointments table. Single appointments are kept in a separate table known as the SingleAppointments table.