User Defined Functions
Tony Bain, LOUIS R. DAVIDSON, Robin Dewson, Chuck Hawkins · Apress eBooks · 2003
User defined functions, known more commonly as UDFs , are routines called from T-SQL code to return either a single value or a rowset. Although they are, perhaps, the least used of specialized stored procedures, they are powerful tools in a database developer’s armory. They provide the developer with the ability to create their own customized functions, which can then be re-used in other parts of their T-SQL code. 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.