来自:http://www.jb51.net/LINUXjishu/10981.html
错误描述: Mysql中添加用户之后可能出现登录时提示ERROR 1045 (28000): Access denied for
user的错误.删除user.user中值为NULL的,或更新NULL为test 1)delete from user where user is NULL
2)update user set user=‘test‘ where user is NULL.意外的情况:
如果上述方法没有效果,依然出现空用户,则可以利用图形化用户client删除.
在重装了CentOS后,发觉Mysql一直不好用。
#
mysqladmin create dbname 命令老是返回mysqladmin: connect to server at ’localhost’
failed
# mysql -u root@localhost
>create database dbname;
也同样返回错误ERROR 1045 (28000):
Access denied for user ’root’@’localhost’
(using password: NO)
# mysql -u root -p
Enter password:
ERROR 1045
(28000): Access denied for user ’root’@’localhost’
(using password: NO)
使用网上介绍的方法修改root用户的密码:
# mysqladmin -uroot -p
password ’newpassword’
Enter password:
mysqladmin: connect to server at
’localhost’ failed
error: ’Access denied for user ’root’@’localhost’
(using password: YES)’
现在终于被我找到了解决方法,如下(本人亲测,全部可行):
方法一:
#
/etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables
--skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET
Password=PASSWORD(’newpassword’) where USER=’root’;
mysql> FLUSH
PRIVILEGES;
mysql> quit
# /etc/init.d/mysql restart
# mysql
-uroot -p
Enter password: <输入新设的密码newpassword>
mysql>
方法二:
直接使用/etc/mysql/debian.cnf文件中[client]节提供的用户名和密码:
# mysql
-udebian-sys-maint -p
Enter password: <输入[client]节的密码>
mysql>
UPDATE user SET Password=PASSWORD(’newpassword’) where USER=’root’;
mysql> FLUSH PRIVILEGES;
mysql> quit
# mysql -uroot -p
Enter password: <输入新设的密码newpassword>
mysql>
方法三:
#
mysql -uroot -p
Enter password:
<输入/etc/mysql/debian.cnf文件中[client]节提供的密码>
【转载】 ERROR 1045 (28000): Access denied for user root@localhost (using password: NO),布布扣,bubuko.com
【转载】 ERROR 1045 (28000): Access denied for user root@localhost (using password: NO)