localhost를 % 로 바꾸면 원격접속용 계정
create user '아이디'@'localhost' identified by '비밀번호';
grant all privileges on *.* to '아이디'@'localhost';
flush privileges;
create user '아이디'@'localhost' identified by '비밀번호';
grant all privileges on *.* to '아이디'@'localhost';
flush privileges;