Like functions in programming languages, Microsoft SQL Server user-defined functions are routines that accept parameters, perform an action, such as a complex calculation, and return the result of that action as a value. The return value can either be a single scalar value or a result set.

 In This Section

User-Defined Function Basics

Describes the benefits and components of user-defined functions.

Types of Functions

Lists the types of functions and provides references to additional information.

 See Also

Other Resources

User-Defined Functions (Database Engine)
Designing User-Defined Functions
Implementing User-defined Functions

Help and Information

Getting SQL Server 2008 Assistance