基于SQL Server 2008r2的数据库镜像代码，要求Principle和Mirror的数据库版本必须一致。如果运行代码不通过，可以尝试将Principle的DB backup下来并在Mirror中Restore.-Database mirror code based on SQL Server 2008R2. It request the same db version between Priciple and Mirror server. If the code could not r