PullSubscription.DatabaseName Свойство

Определение

Пространство имен:

Microsoft.SqlServer.Replication

Сборка:

Microsoft.SqlServer.Rmo.dll

Возвращает или задает имя базы данных подписки.

public:
 property System::String ^ DatabaseName { System::String ^ get(); void set(System::String ^ value); };

public string DatabaseName { get; set; }

member this.DatabaseName : string with get, set

Public Property DatabaseName As String

Значение свойства

String

Имя базы данных подписки.

Примеры

// Define the Publisher, publication, and databases.
string publicationName = "AdvWorksProductTran";
string publisherName = publisherInstance;
string subscriberName = subscriberInstance;
string subscriptionDbName = "AdventureWorks2012Replica";
string publicationDbName = "AdventureWorks2012";

//Create connections to the Publisher and Subscriber.
ServerConnection subscriberConn = new ServerConnection(subscriberName);
ServerConnection publisherConn = new ServerConnection(publisherName);

// Create the objects that we need.
TransPublication publication;
TransPullSubscription subscription;

try
{
    // Connect to the Publisher and Subscriber.
    subscriberConn.Connect();
    publisherConn.Connect();

    // Ensure that the publication exists and that 
    // it supports pull subscriptions.
    publication = new TransPublication();
    publication.Name = publicationName;
    publication.DatabaseName = publicationDbName;
    publication.ConnectionContext = publisherConn;

    if (publication.IsExistingObject)
    {
        if ((publication.Attributes & PublicationAttributes.AllowPull) == 0)
        {
            publication.Attributes |= PublicationAttributes.AllowPull;
        }

        // Define the pull subscription.
        subscription = new TransPullSubscription();
        subscription.ConnectionContext = subscriberConn;
        subscription.PublisherName = publisherName;
        subscription.PublicationName = publicationName;
        subscription.PublicationDBName = publicationDbName;
        subscription.DatabaseName = subscriptionDbName;

        // Specify the Windows login credentials for the Distribution Agent job.
        subscription.SynchronizationAgentProcessSecurity.Login = winLogin;
        subscription.SynchronizationAgentProcessSecurity.Password = winPassword;

        // Make sure that the agent job for the subscription is created.
        subscription.CreateSyncAgentByDefault = true;

        // By default, subscriptions to transactional publications are synchronized 
        // continuously, but in this case we only want to synchronize on demand.
        subscription.AgentSchedule.FrequencyType = ScheduleFrequencyType.OnDemand;

        // Create the pull subscription at the Subscriber.
        subscription.Create();

        Boolean registered = false;

        // Verify that the subscription is not already registered.
        foreach (TransSubscription existing
            in publication.EnumSubscriptions())
        {
            if (existing.SubscriberName == subscriberName
                && existing.SubscriptionDBName == subscriptionDbName)
            {
                registered = true;
            }
        }
        if (!registered)
        {
            // Register the subscription with the Publisher.
            publication.MakePullSubscriptionWellKnown(
                subscriberName, subscriptionDbName,
                SubscriptionSyncType.Automatic,
                TransSubscriberType.ReadOnly);
        }
    }
    else
    {
        // Do something here if the publication does not exist.
        throw new ApplicationException(String.Format(
            "The publication '{0}' does not exist on {1}.",
            publicationName, publisherName));
    }
}
catch (Exception ex)
{
    // Implement the appropriate error handling here.
    throw new ApplicationException(String.Format(
        "The subscription to {0} could not be created.", publicationName), ex);
}
finally
{
    subscriberConn.Disconnect();
    publisherConn.Disconnect();
}

' Define the Publisher, publication, and databases.
Dim publicationName As String = "AdvWorksProductTran"
Dim publisherName As String = publisherInstance
Dim subscriberName As String = subscriberInstance
Dim subscriptionDbName As String = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"

'Create connections to the Publisher and Subscriber.
Dim subscriberConn As ServerConnection = New ServerConnection(subscriberName)
Dim publisherConn As ServerConnection = New ServerConnection(publisherName)

' Create the objects that we need.
Dim publication As TransPublication
Dim subscription As TransPullSubscription

Try
    ' Connect to the Publisher and Subscriber.
    subscriberConn.Connect()
    publisherConn.Connect()

    ' Ensure that the publication exists and that 
    ' it supports pull subscriptions.
    publication = New TransPublication()
    publication.Name = publicationName
    publication.DatabaseName = publicationDbName
    publication.ConnectionContext = publisherConn

    If publication.IsExistingObject Then
        If (publication.Attributes And PublicationAttributes.AllowPull) = 0 Then
            publication.Attributes = publication.Attributes _
            Or PublicationAttributes.AllowPull
        End If

        ' Define the pull subscription.
        subscription = New TransPullSubscription()
        subscription.ConnectionContext = subscriberConn
        subscription.PublisherName = publisherName
        subscription.PublicationName = publicationName
        subscription.PublicationDBName = publicationDbName
        subscription.DatabaseName = subscriptionDbName
        subscription.Description = "Pull subscription to " + publicationDbName _
        + " on " + subscriberName + "."

        ' Specify the Windows login credentials for the Distribution Agent job.
        subscription.SynchronizationAgentProcessSecurity.Login = winLogin
        subscription.SynchronizationAgentProcessSecurity.Password = winPassword

        ' Make sure that the agent job for the subscription is created.
        subscription.CreateSyncAgentByDefault = True

        ' By default, subscriptions to transactional publications are synchronized 
        ' continuously, but in this case we only want to synchronize on demand.
        subscription.AgentSchedule.FrequencyType = ScheduleFrequencyType.OnDemand

        ' Create the pull subscription at the Subscriber.
        subscription.Create()

        Dim registered As Boolean = False

        ' Verify that the subscription is not already registered.
        For Each existing As TransSubscription In publication.EnumSubscriptions()
            If existing.SubscriberName = subscriberName And _
                existing.SubscriptionDBName = subscriptionDbName Then
                registered = True
            End If
        Next existing
        If Not registered Then
            ' Register the subscription with the Publisher.
            publication.MakePullSubscriptionWellKnown( _
             subscriberName, subscriptionDbName, _
             SubscriptionSyncType.Automatic, _
             TransSubscriberType.ReadOnly)
        End If
    Else
        ' Do something here if the publication does not exist.
        Throw New ApplicationException(String.Format( _
         "The publication '{0}' does not exist on {1}.", _
         publicationName, publisherName))
    End If
Catch ex As Exception
    ' Implement the appropriate error handling here.
    Throw New ApplicationException(String.Format( _
        "The subscription to {0} could not be created.", publicationName), ex)
Finally
    subscriberConn.Disconnect()
    publisherConn.Disconnect()
End Try

Комментарии

DatabaseName является обязательным свойством и должен быть задан перед созданием подписки на сервере. После того как подписка существует на сервере, DatabaseName свойство нельзя изменить.

Свойство DatabaseName может быть получено только членами sysadmin предопределенных ролей сервера на подписчике или членами db_owner предопределенных ролей базы данных в базе данных подписки.

Свойство DatabaseName может быть задано только членами sysadmin предопределенных ролей сервера на подписчике или членами db_owner предопределенных ролей базы данных в базе данных подписки.

DatabaseName Получение свойства эквивалентно выполнению sp_helppullsubscription (Transact-SQL) или sp_helpmergepullsubscription (Transact-SQL).

DatabaseName Задание свойства эквивалентно выполнению sp_addpullsubscription (Transact-SQL) или sp_addmergepullsubscription (Transact-SQL).

См. также раздел

• Практическое руководство. Создание подписки по запросу (программирование RMO)