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

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/rc.d/init.d/mysqld 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('newpassword')where USER='newuser';

比如给root设置新密码：
 UPDATE user SET Password=PASSWORD('myDB_112233')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>