mysql -p -u root

CREATE USER 'user'@'localhost' IDENTIFIED BY 'password';

GRANT ALL PRIVILEGES ON database.table TO 'user'@'localhost';
GRANT ALL PRIVILEGES ON database.* TO 'user'@'localhost';
GRANT ALL PRIVILEGES ON *.* TO 'user'@'localhost';

GRANT SELECT, INSERT, DELETE ON database.* TO 'user'@'localhost';

FLUSH PRIVILEGES;

DROP USER 'user'@'localhost'

• https://kyup.com/tutorials/create-new-user-grant-permissions-mysql/