नोट
इस पृष्ठ तक पहुंच के लिए प्राधिकरण की आवश्यकता होती है। आप साइन इन करने या निर्देशिकाएँ बदलने का प्रयास कर सकते हैं।
इस पृष्ठ तक पहुंच के लिए प्राधिकरण की आवश्यकता होती है। आप निर्देशिकाएँ बदलने का प्रयास कर सकते हैं।
Applies to: 
SQL Server
User-defined functions are routines that can take parameters, perform calculations or other actions, and return a result. You can write user-defined functions in any .NET Framework programming language, such as C# or Visual Basic .NET, to use on SQL Server.
There are two types of functions: scalar, which returns a single value, and table-valued, which returns a set of rows.
In this section
The following table lists the articles in this section.
| Article | 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. |