Наделим пользователей
user@localhost- доступом к базам с префиксомrun_user_test@localhost- доступом к базам с префиксомtest_
CREATE USER 'user'@'localhost' IDENTIFIED BY 'somePassword';
CREATE USER 'user_test'@'localhost' IDENTIFIED BY 'somePassword_test';
GRANT ALL PRIVILEGES ON `run_%`.* TO 'user'@'localhost';
GRANT ALL PRIVILEGES ON `test_%`.* TO 'user_test'@'localhost';
FLUSH PRIVILEGES;