Instance.Update Method

项目
12/15/2008

Updates the instance of Notifications, and all of its applications, with changes made to Instance and Application properties.

命名空间: Microsoft.SqlServer.Management.Nmo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

语法

声明
Public Sub Update

public void Update ()

public:
void Update ()

public void Update ()

public function Update ()

备注

The Update method compares the current instance and application definitions in the databases with your definitions of the instance and its applications. For each valid change, the Update method updates the database as specified.

Not all of the instance and application properties can be updated. For example you cannot change the instance and application database definitions. For more information, review the documentation for the properties you are updating.

Altering some EventClass, SubscriptionClass, and NotificationClass properties can delete or rename existing tables in the application database. Review the properties you are changing to make sure you know the effects of the changes.

示例

The following examples show how to update an instance of Notification Services:

// Specify the Database Engine instance that hosts the 
// Notificaiton Services instance and get a reference to 
// the NotificationServices object.
smo.Server server = new smo.Server(sqlServer);
NotificationServices notificationServices = 
    server.NotificationServices;

// Get the Notification Services instance.
Instance nsinst = notificationServices.Instances[instanceName];

// If using encryption, set the argument key. The value
// must match the value used when creating the instance.
nsinst.ArgumentKey = "MyKey135711";

// Disable the instance.
Console.WriteLine("Disabling instance...");
nsinst.Disable();

// Get the application to update.
Application nsapp = nsinst.Applications[applicationName];

// Set the application's subscription throttle to 1000.
nsapp.SubscriptionThrottle = 1000;

// Update the instance of Notification Services.
// This can take a few minutes.
Console.WriteLine("Updating instance...");
nsinst.Update();

// Enable the instance.
Console.WriteLine("Enabling instance...");
nsinst.Enable();

// Generate new XML files.
Console.WriteLine("Exporting instance configuration...");
nsinst.Export(@"C:\NS\Full", true);
Console.WriteLine("Done.");

' Specify the Database Engine instance that hosts the 
' Notificaiton Services instance and get a reference to 
' the NotificationServices object.
Dim server As smo.Server = New smo.Server(sqlServer)
Dim notificationServices As NotificationServices = _
    server.NotificationServices

' Get the Notification Services instance.
Dim nsinst As Instance = _
    notificationServices.Instances(instanceName)

' If using encryption, set the argument key. The value
' must match the value used when creating the instance.
nsinst.ArgumentKey = "MyKey135711"

' Disable the instance.
Console.WriteLine("Disabling instance...")
nsinst.Disable()

' Get the application to update.
Dim nsapp As Application = nsinst.Applications(applicationName)

' Set the application's subscription throttle to 1000.
nsapp.SubscriptionThrottle = 1000

' Update the instance of Notification Services.
' This can take a few minutes.
Console.WriteLine("Updating instance...")
nsinst.Update()

' Enable the instance.
Console.WriteLine("Enabling instance...")
nsinst.Enable()

' Verify the change in XML (just for fun).
Console.WriteLine("Exporting instance configuration...")
nsinst.Export("C:\NS\Full\Update", True)
Console.WriteLine("Done.")

线程安全

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.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台