mysql 修改root密码，分配权限

1.如我的Mysql 安装在E:\xampp\mysql目录下

win7下使用CMD，命令行使用无密码的root用户登录mysql数据库，红色字体为命令

1）.更新root用户密码为root

2.）刷新权限

3）.分配root用户在任何主机上都可以访问mysql数据库

4）.刷新权限

 

E:\xampp\mysql\bin>mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 41
Server version: 5.5.25a MySQL Community Server (GPL)

Copyright (c) 2000, 2011, 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> update mysql.user set password=PASSWORD('root') where user='root';
Query OK, 2 rows affected (0.00 sec)
Rows matched: 2  Changed: 2  Warnings: 0

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

mysql> grant all privileges on *.* to 'root'@'%' identified by 'root' with grant
 option;
Query OK, 0 rows affected (0.00 sec)

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

mysql> \q
Bye

 

2.使用修改过得root用户密码root登录Mysql

 

E:\xampp\mysql\bin>mysql -uroot -p
Enter password: ****
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 42
Server version: 5.5.25a MySQL Community Server (GPL)

Copyright (c) 2000, 2011, 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;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| cdcol              |
| mysql              |
| oms                |
| performance_schema |
| phpmyadmin         |
| test               |
| webauth            |
+--------------------+
8 rows in set (0.00 sec)

mysql>