DROP FUNCTION

Use this MySQL statement to delete a user-defined function.

Syntax

Below is the syntax for this command. Text within square brackets (i.e, [ and ] ) are optional. Choices are separated by bars (i.e, | ). Ellipses preceded by a comma indicates a repeating pattern. Ellipses before or after syntax are used to highlight a relevant except from the larger syntax. Text displayed in italic letters represent text that should be replaced with the specific names related to the database (e.g., column with the name of the column).

DROP FUNCTION [IF EXISTS] function

Explanation

Use this MySQL statement to delete a user-defined function. The IF EXISTS keyword prevents error messages when the function doesn't exist. Instead, a note will be generated, which can be displayed afterward by executing the SHOW WARNINGS statement. This MySQL statement requires the ALTER ROUTINE privilege for the function given, which is automatically granted to the creator of the function.