1. 问题描述
在ubuntu14.10终端下， 执行命令
并输入密码后进入mysql的shell， 然后在显示所有数据库时出现以下信息
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ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
具体操作如下
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xx@ubuntu:~$ mysql -uroot -p
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Enter password:
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Welcome to the MySQL monitor. Commands end with ; or \g.
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Your MySQL connection id is 5
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Server version: 5.7.5-m15
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Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
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Oracle is a registered trademark of Oracle Corporation and/or its
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affiliates. Other names may be trademarks of their respective
-
owners.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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mysql> show databases;
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ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
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mysql>
2. 解决方法
以上信息提示比较明显， 即在执行语句前必需设置密码，此处为了学习， 故将密码设置为123456, 且本人的root密码正是123456(密码请各位自行设置) ，操作如下：
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mysql> SET PASSWORD = PASSWORD('123456');
执行完上面设置密码的命令后， 问题即可解决。
以下为本人的操作：
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xx@ubuntu:~$ mysql -uroot -p
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Enter password:
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Welcome to the MySQL monitor. Commands end with ; or \g.
-
Your MySQL connection id is 5
-
Server version: 5.7.5-m15
-
-
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
-
-
Oracle is a registered trademark of Oracle Corporation and/or its
-
affiliates. Other names may be trademarks of their respective
-
owners.
-
-
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
-
-
mysql> show databases;
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ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
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mysql> use mysql;
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ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
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mysql> SET PASSWORD = PASSWORD('123456');
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Query OK, 0 rows affected (0.06 sec)
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mysql> show databases;
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+--------------------+
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| Database |
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+--------------------+
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| information_schema |
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| mysql |
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| performance_schema |
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+--------------------+
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3 rows in set (0.00 sec)
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mysql>
详情可以查询数据库mysql下的user表
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mysql> select * from mysql.user;
或：
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mysql> select host, user, password from mysql.user;
(责任编辑：IT) |
