How to pass the CHAR as the input to the IDENTIFIED BY inside CREATE USER - sql

Question

I am attempting to create a database user from within a procedure in MariaDB 5.5.40
I can successfully do the following:
DROP PROCEDURE IF EXISTS testUserCreate;
DELIMITER //
CREATE PROCEDURE testUserCreate
(IN sDbUser CHAR(16), IN sDbPass CHAR(40))
BEGIN
CREATE USER sDbUser#'%';
END;
//
DELIMITER ;
So the procedure has no problems with using the parameterised user name, however, when i try to do the same with the password, like so:
DROP PROCEDURE IF EXISTS testUserCreate;
DELIMITER //
CREATE PROCEDURE testUserCreate
(IN sDbUser CHAR(16), IN sDbPass CHAR(40))
BEGIN
CREATE USER sDbUser#'%' IDENTIFIED BY PASSWORD PASSWORD(sDbPass);
END;
//
DELIMITER ;
I get the error:
ERROR 1064 (42000) at line 3: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PASSWORD(sDbPass);
Yes, i have tried to change it to IDENTIFIED BY sDbPass and other variations i could think of.
The GRANT generates the exact same error if i attempt to add IDENTIFIED BY with the variable in it.
The question is: Is it possible, and if so how, to pass the char procedure variable into the IDENTIFIED BY clause inside the CREATE USER.

Answer 1

Ok, i guess that for whatever reason it's impossible. If somebody else will be looking for it, you will have to manually edit the mysql.user (and maybe mysql.db) table:
DROP PROCEDURE IF EXISTS testUserCreate;
DELIMITER //
CREATE PROCEDURE testUserCreate
(IN sDbUser CHAR(16), IN sDbPass CHAR(40))
BEGIN
INSERT INTO mysql.user (Host, User, Password) VALUES('%', sDbUser, PASSWORD(sDbPass));
FLUSH PRIVILEGES;
END;
//
DELIMITER ;