MySQL ERROR 1044 Access denied

증상

ERROR 1044 (42000): Access denied for user 'root'@'localhost' to database 'some_db'

확인

SELECT USER();
SELECT CURRENT_USER();
SELECT host, user, password, Grant_priv, Super_priv FROM mysql.user;

해결 (Grant_priv=N)

UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
FLUSH PRIVILEGES;
GRANT ALL ON *.* TO 'root'@'localhost';