MySQL 5.6显示用户的所有授权

我有一对MySQL，通过VIP进行通信。我想验证来自任何IP的所有用户（包括root用户）的权限。当我尝试查看root用户的所有授权时，我得到以下信息：

mysql> show grants for root;
ERROR 1141 (42000): There is no such grant defined for user 'root' on host '%'

但是，还有其他针对root的拨款：

mysql> show grants for 'root'@'localhost';
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@localhost                                                                                                              |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION |
| GRANT ALL PRIVILEGES ON `*.*`.* TO 'root'@'localhost'                                                                                  |
| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION                                                                           |
+----------------------------------------------------------------------------------------------------------------------------------------+
3 rows in set (0.00 sec)

我如何查看用户的所有授权（所有主机和数据库）？您可以使用此选项：

select * from INFORMATION_SCHEMA.SCHEMA_PRIVILEGES;

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我想你会从这里得到帮助的