User-defined function: Difference between revisions

Revision as of 12:11, 9 March 2006

Revision as of 10:13, 17 March 2006

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User Defined Function, or UDF is an extension to a SQL database server (like [[MySQL]]) that can be compiled for use in a SQL query. For example, if it is necessary to obtain a random number for use as a primary key, and [[MySQL]] does not support that function, a new, external function could be written and compiled to accomplish this task. One sample of such query could be:

SELECT GETRANDOMKEY();

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For specific information pertaining to UDF's in [[MySQL]], visit the [[MySQL]] website at [http://www.mysql.com]

[[Category:Computer programming]]

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[[Category:SQL]]

[[Category:Databases]]

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