VacuumSchedule Class

Статья
12/15/2008

Define the vacuuming (data removal) schedule for the Notification ServicesApplication.

Пространство имен: Microsoft.SqlServer.Management.Nmo
Сборка: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Синтаксис

'Декларация
Public NotInheritable Class VacuumSchedule
    Inherits NamedSmoObject

public sealed class VacuumSchedule : NamedSmoObject

public ref class VacuumSchedule sealed : public NamedSmoObject

public final class VacuumSchedule extends NamedSmoObject

public final class VacuumSchedule extends NamedSmoObject

Замечания

Vacuuming removes older event and notification data from the application database. For more information about the vacuuming process, see Настройка удаления данных.

The vacuuming process runs daily at the specified times for the specified duration.

Vacuuming schedules cannot overlap. If schedules overlap, Notification Services stops the earlier vacuuming process before the later one starts.

Vacuuming schedules are optional, and an application can have multiple vacuum schedules. If you do not specify at least one vacuum schedule, obsolete data is not removed from the application database.

Inheritance Hierarchy

System.Object
   Microsoft.SqlServer.Management.Smo.SmoObjectBase
     Microsoft.SqlServer.Management.Smo.SqlSmoObject
       Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Nmo.VacuumSchedule

Пример

The following examples show how to create a schedule for removing obsolete data and then add the schedule to the collection of vacuum schedules for the application:

VacuumSchedule vacuumSchedule1 = new VacuumSchedule(
    myApplication, "1");
vacuumSchedule1.StartTime = new TimeSpan(23, 0, 0);
myApplication.VacuumSchedules.Add(vacuumSchedule1);

Dim vacuumSchedule1 As VacuumSchedule = _
    New VacuumSchedule(myApplication, "1")
vacuumSchedule1.StartTime = New TimeSpan(23, 0, 0)
myApplication.VacuumSchedules.Add(vacuumSchedule1)

Синхронизация потоков

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

См. также

Справочник

VacuumSchedule Members
Microsoft.SqlServer.Management.Nmo Namespace

Другие ресурсы

Удаление устаревших данных приложения
VacuumSchedule Element (ADF)

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