MariaDB [mysql]> create user Raikon@localhost identified by "atenorth";
ERROR 1396 (HY000): Operation CREATE USER failed for 'Raikon'@'localhost'
因为使用旧的方法删除用户
use mysql
delete from user where User="Raikon";
这样删除用户是不支持的
即使
flush privileges;
也不行
create user Raikon@localhost identified by 'atenorth';
OK