Application.VacuumRetentionAge Property

Articolo
12/15/2008

Gets or sets the minimum age at which event and notification data is considered to be obsolete and available for removal.

Spazio dei nomi: Microsoft.SqlServer.Management.Nmo
Assembly : Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Sintassi

'Dichiarazione
Public Property VacuumRetentionAge As TimeSpan

public TimeSpan VacuumRetentionAge { get; set; }

public:
property TimeSpan VacuumRetentionAge {
    TimeSpan get ();
    void set (TimeSpan value);
}

/** @property */
public TimeSpan get_VacuumRetentionAge ()

/** @property */
public void set_VacuumRetentionAge (TimeSpan value)

public function get VacuumRetentionAge () : TimeSpan

public function set VacuumRetentionAge (value : TimeSpan)

Valore proprietà

A TimeSpan object that specifies the retention age.

Osservazioni

Testo aggiornato:5 dicembre 2005

If you specify VacuumSchedules, you also can specify the data retention age.

Data is retained for the time span specified by the retention age, although it is not necessarily removed immediately upon expiration. When the data removal process runs, it attempts to delete event and notification data that is older than the retention age.

If you use the Application(Instance,String) constructor, the default value is 7 days, if you configure vacuuming. If you use the default constructor, you must set this property.

Esempio

The following examples show how to set all application execution settings, including the vacuum retention age:

// Define application execution settings
myApplication.QuantumDuration = new TimeSpan(0, 0, 15);
myApplication.PerformanceQueryInterval = new TimeSpan(0, 0, 5);
myApplication.SubscriptionQuantumLimit = 1;
myApplication.ChronicleQuantumLimit = 1;
myApplication.VacuumRetentionAge = new TimeSpan(0, 0, 1);
myApplication.LogBeforeDeliveryAttempts = false;
myApplication.LogNotificationText = false;
myApplication.LogStatusInfo = false;
myApplication.EventThrottle = 500;
myApplication.NotificationThrottle = 500;
myApplication.SubscriptionThrottle = 500;
myApplication.ProcessEventsInOrder = false;

' Define application execution settings
myApplication.QuantumDuration = New TimeSpan(0, 0, 15)
myApplication.PerformanceQueryInterval = New TimeSpan(0, 0, 5)
myApplication.SubscriptionQuantumLimit = 1
myApplication.ChronicleQuantumLimit = 1
myApplication.VacuumRetentionAge = New TimeSpan(0, 0, 1)
myApplication.LogBeforeDeliveryAttempts = False
myApplication.LogNotificationText = False
myApplication.LogStatusInfo = False
myApplication.EventThrottle = 500
myApplication.NotificationThrottle = 500
myApplication.SubscriptionThrottle = 500
myApplication.ProcessEventsInOrder = False

Thread Safety

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.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Vedere anche

Riferimento

Application Class
Application Members
Microsoft.SqlServer.Management.Nmo Namespace
VacuumSchedules

Altre risorse

Configurazione della rimozione dei dati
RetentionAge Element (ADF)

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