SHOW CREATE FUNCTION

description

The statement is used to show the creation statement of user-defined function
grammar：
    SHOW CREATE FUNTION function_name(arg_type [, ...]) [FROM db_name]];
Description：
   `function_name`: the name of the function to be displayed
   `arg_type`: the parameter list of the function to be displayed
   If you do not specify db_name, use the current default db

example

1. Show the creation statement of the specified function under the default db
    SHOW CREATE FUNCTION my_add(INT, INT)

keyword

SHOW,CREATE,FUNCTION