User-Defined Functions

Each new version of SQL Server features improvements to T-SQL that make development easier. SQL Server 2000 introduced (among other things) the concept of user-defined functions (UDFs). Like functions in other programming languages, T-SQL UDFs provide a convenient way for developers to define routines that accept parameters, perform actions based on those parameters, and return data to the caller. T-SQL functions come in three flavors: inline table-valued functions (TVFs), multistatement TVFs, and scalar functions. SQL Server 2014 also supports the ability to create CLR integration UDFs, which are discussed in ...

Get Pro T-SQL Programmer’s Guide, 4th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.