ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

CentOS命令登录MySQL时，报错ERROR 1045 (28000): Access denied for user root@localhost (using password: NO)错误解决方法

1、停用mysql服务：# /etc/init.d/mysql stop  

2、输入命令：# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &

3、登入数据库：# mysql -u root mysql

4、mysql> use mysql; 结果如下：

  Database changed

5、mysql> UPDATE user SET Password=PASSWORD('root')where USER='root';

结果如下：

Query OK, 3 rows affected (0.00 sec)

Rows matched: 3  Changed: 3  Warnings: 0'

 

mysql> FLUSH PRIVILEGES;

结果如下：

Query OK, 0 rows affected (0.00 sec)

 

mysql> quit

# /etc/init.d/mysql restart

# mysql -u newuser –p

Enter password: newpassword

mysql><登录成功>