User-Defined Functions and Types


In this chapter, I’ll present recipes for user-defined functions and types. User-defined functions (UDFs) allow you to encapsulate both logic and subroutines into a single function that can then be used within your Transact-SQL queries and programmatic objects. User-defined types (UDTs) allow you to create an alias type based on an underlying systemdata type, enforcing a specific data type, length, and nullability.


Data Type Database Object Syntax Element Create Function Select Clause 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Joseph Sack 2008

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