You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IDENTIFIED BY '<your-password>'' at line 4 code example
Example: 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 'privilleges to
GRANT ALL PRIVILEGES ON * . * TO 'wordpressuser'@'localhost';