如何使用Entity Framework 6将数据库从网络服务器迁移到本地SQL Server

I got a ASP.NET MVC 5 project which is already published in a server. But I have to extend it. Thus I'm trying to make local development environment with local database. I don't want to loss any data which is already working. As this is huge project. So all model and controller is done.I got a ASP.NET MVC 5 project which is already