ERROR 1820 (HY000): Unknown error 1820,ERROR 1046 (3D000):

MySQL登录进去之后，执行语句出现报错：

root@localhost 09:05:  [(none)]> use mysql;
ERROR 1820 (HY000): Unknown error 1820
root@localhost 09:05:  [(none)]> show tables;
ERROR 1046 (3D000):

解决办法：

root@localhost 09:06:  [(none)]> set password=password('密码');

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