An Intro to CLR Integration in SQL Server 2005
August 25, 2005[From Developer.com]
T-SQL has been the conventional method of writing database objects such as stored procedures, triggers, aggregates, and so forth. SQL Server 2005 introduces a new array of possibilities because of its tight integration with the .NET Framework. It allows you to write stored procedures, triggers, and other such objects in a .NET-compliant language such as C# and VB.NET, compile them as a dynamic link library, and register them inside SQL Server.
T-SQL is a great tool for managing relational data and working with set-based operations. It leverages upon numerous database features, such as query plans and the caching of query plans and their relevant results at many steps inside SQL Server, which make it a natural choice for data-related operations inside SQL Server. However, the unwieldiness of T-SQL makes it less than a pleasure to deal with in situations that involve work such as complex mathematical computations, recursive operations, and heavily procedural tasks.
The article continues at http://www.developer.com/net/net/article.php/3528601