Mysql Access denied for user 'root'

ERROR 1045 (28000): Access denied for user ‘root‘@‘localhost‘ (using password: NO)

解决方法

原密码为空，更改root密码

 1 # service mysql stop
 2 # mysqld_safe --user=mysql --skip-grant-tables --skip-networking
 3
 4 # mysql -u root mysql
 5 　　mysql> update user set password=password(‘新密码‘) where user=‘root‘;
 6 　　mysql> flush privileges;
 7 　　mysql> quit
 8
 9 # service mysql restart
10 # mysql -uroot -p
11 Enter password: <输入新设的密码>

Mysql Access denied for user 'root'