Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 39.1Mb
PDF (A4) - 39.2Mb
PDF (RPM) - 38.3Mb
HTML Download (TGZ) - 10.7Mb
HTML Download (Zip) - 10.8Mb
HTML Download (RPM) - 9.5Mb
Man Pages (TGZ) - 223.4Kb
Man Pages (Zip) - 331.3Kb
Info (Gzip) - 3.6Mb
Info (Zip) - 3.6Mb
Excerpts from this Manual

MySQL 5.7 Reference Manual  /  MySQL Server Administration  /  MySQL Server User-Defined Functions

5.6 MySQL Server User-Defined Functions

MySQL Server enables user-defined functions (UDFs) to be created and loaded into the server to extend server capabilities. Server capabilities can be implemented in whole or in part using UDFs. In addition, you can write your own UDFs.

The following sections provide a reference summary of all UDFs, describe how to install and uninstall UDFs, and how to determine at runtime which UDFs are installed and obtain information about them. For information about writing UDFs, see Section 28.4, “Adding Functions to MySQL”.