This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
The ReplaceDatabase property directs a restore operation when a new image of the restored database is required.
If TRUE, a new image of the database is created. The image is created regardless of the presence of an existing database with the same name.
If FALSE (default), a new image of the database is not created by the restore operation. The database targeted by the restore operation must exist on an instance of Microsoft SQL Server.