MySQL 8.4 Release Notes
CREATE FUNCTION 语句用于创建存储函数和可加载函数:The CREATE FUNCTION statement is
used to create stored functions and loadable functions:
有关创建存储函数的信息,请参见 第 15.1.17 节,“CREATE PROCEDURE 和 CREATE FUNCTION 语句”。For information about creating stored functions, see Section 15.1.17, “CREATE PROCEDURE and CREATE FUNCTION Statements”.
关于创建可加载函数的信息,请参见 第 15.7.4.1 节,“CREATE FUNCTION Statement for Loadable Functions”。For information about creating loadable functions, see Section 15.7.4.1, “CREATE FUNCTION Statement for Loadable Functions”.