错误：The user specified as a definer (‘root‘@‘%‘) does not exist

ERROR 1449 (HY000): The user specified as a definer ('root'@'%') does not exist

一、ＭySQL错误现象：

　　执行创建的存储过程或者触发器报：

ERROR 1449 (HY000): The user specified as a definer ('root'@'%') does not exist

二、错误原因：

　　这样由于创建存储过程或者触发器时间，指定的 DEFINER为 'root'@'%'，而在MySQL的权限表（ mysql.user）中，并不存在相关的 user和 host：

mysql> select host,user,password from mysql.user;
+-------------------------+------+----------+
| host                    | user | password |
+-------------------------+------+----------+
| localhost               | root |          |
| aiezu                   | root |          |
| 127.0.0.1               | root |          |
| ::1                     | root |          |
| localhost               |      |          |
| aiezu                   |      |          |
+-------------------------+------+----------+

三、解决方案：

　　执行下面SQL语句，为 'root'@'%'授权即可：

grant all privileges on *.* to 'root'@'%' identified by ".";
flush privileges;

select host,user,password from mysql.user;