mysql异常之ERROR 1396 (HY000): Operation CREATE USER failed for

1.异常描述

mysql> create user 'huibang'@'%' identified by 'huibang@123';
ERROR 1396 (HY000): Operation CREATE USER failed for 'huibang'@'%'

2.解决方案

mysql> drop user 'huibang'@'%';
Query OK, 0 rows affected (0.02 sec)

mysql> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

mysql>  create user 'huibang'@'%' identified by 'huibang@123';
Query OK, 0 rows affected (0.00 sec)

原因

网上找了下原因： 
Assume the user is there, so drop the user 
After deleting the user, there is need to flush the mysql privileges 
Now create the user.