"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 'inkoop_prijs = '4.39' WHERE id = 1' at line 7" 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';