CLR User-Defined Functions

User-defined functions are routines that can take parameters, perform calculations or other actions, and return a result. In Microsoft SQL Server 2005, you can write user-defined functions in any Microsoft .NET Framework programming language, such as Microsoft Visual Basic .NET or Microsoft Visual C#.

There are two types of functions: scalar, which returns a single value, and table-valued, which returns a set of rows.

The following table lists the topics in this section.

Topic	Description
CLR Scalar-Valued Functions	Covers implementation requirements and examples of scalar-valued functions.
CLR Table-Valued Functions	Discusses how to implement and use table-valued functions (TVFs), as well as differences between Transact-SQL and common language runtime (CLR) TVFs.
CLR User-Defined Aggregates	Describes how to implement and use user-defined aggregates.

See Also

Other Resources

Understanding User-defined Functions

Help and Information

Getting SQL Server 2005 Assistance