WriteReplicationFailOverMode Method
Cette fonctionnalité sera supprimée dans une prochaine version de Microsoft SQL Server. Évitez d'utiliser cette fonctionnalité dans de nouveaux travaux de développement et prévoyez de modifier les applications qui utilisent actuellement cette fonctionnalité.
The WriteReplicationFailOverMode method sets the failover mode for a subscription that uses immediate updating with queued updating as a failover option.
Syntaxe
object.WriteReplicationFailOverMode(
szPublisher ,
szPublicationDB ,
szPublication ,FailOverMode)
Parts
object
Expression that evaluates to an object in the Applies To list.szPublisher
String that specifies the name of the Publisher.szPublicationDB
String that specifies the name of the publication database.szPublication
String that specifies the name of the publication.FailOverMode
Long integer specifying a SQLDMO_REPLFAILOVER_TYPE constant as described in Settings.
Prototype (C/C++)
HRESULT WriteReplicationFailOverMode(
SQLDMO_LPCSTR pszPublisher,
SQLDMO_LPCSTR pszPublicationDB,
SQLDMO_LPCSTR pszPublication,
SQLDMO_REPLFAILOVER_TYPE FailOverMode);
Settings
Set the FailOverMode parameter using these values.
Constant |
Value |
Description |
|---|---|---|
SQLDMOReplFailOver_/Immediate |
0 |
Use the immediate updating option to propagate changes made at Subscribers to the Publisher. |
SQLDMOReplFailOver_/Queued |
1 |
Use the queued updating option to propagate changes made at Subscribers to the Publisher. |
Notes
Microsoft SQL Server replication supports toggling between immediate updating and queued updating options. This configuration is also known as immediate updating with queued updating as a failover option. You can invoke failover, or queued updating, when an immediate update on the Subscriber fails because the Publisher is not available. At some later point, when the Publisher becomes available, you can invoke failback, or immediate updating. Set the FailOverMode parameter to SQLDMOReplFailOver_Queued to enable queued updating.
Prior to using WriteReplicationFailOverMode, ensure that the subscription was created using a SQLDMO_TRANSUBSCRIBER_TYPE value of SQLDMOTranSubscriber_Failover.
[!REMARQUE]
If an application calls WriteReplicationFailOverModeon an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000 or later" are returned.