LLBLGen Pro

LLBLGen Pro, the #1 O/R mapper and data-access tier generator for .NET, generates a complete data-access tier and business facade/support tier for you (in C# or VB.NET), using an existing database schema set. In seconds. The generated .NET code is compiler-ready and can, being compiled by the .NET C# or VB.NET compiler, be used immediately by other applications.