Question

我执行了以下命令来更改数据库密码：

mysql> UPDATE mysql.user SET Password=('root') WHERE User = 'root';
Query OK, 4 rows affected (0.06 sec)
Rows matched: 4  Changed: 4  Warnings: 0

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

现在我无法使用密码“root”访问数据库。我收到以下消息：

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

任何人都可以帮我吗？

Answer 1

请在Terminal上运行：

停止MySQL守护程序：

/etc/init.d/mysql stop
安全地启动MySQL：

sudo /usr/bin/mysqld_safe --skip-grant-tables &
然后您就可以开始重置密码了：

SET PASSWORD FOR 'root@localhost' = PASSWORD('yourNewPassword');
FLUSH PRIVILEGES;

修改：
我在自己的计算机上一步一步地运行命令。您可以关注它们，它们会成功运行：

begueradj@begueradj-X71Q:/var/www$ sudo /etc/init.d/mysql stop [sudo] password for begueradj: Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service mysql stop Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the stop(8) utility, e.g. stop mysql mysql stop/waiting begueradj@begueradj-X71Q:/var/www$ sudo mysqld_safe --skip-grant-tables & [2] 6035 begueradj@begueradj-X71Q:/var/www$ 141023 10:11:43 mysqld_safe Can't log to error log and syslog at the same time. Remove all --log-error configuration options for --syslog to take effect. 141023 10:11:43 mysqld_safe Logging to '/var/log/mysql/error.log'. 141023 10:11:43 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql begueradj@begueradj-X71Q:/var/www$ mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.37-0ubuntu0.12.04.1 (Ubuntu) Copyright (c) 2000, 2014, 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> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> update user set password=PASSWORD("begueradj") where User='root'; Query OK, 4 rows affected (0.02 sec) Rows matched: 4 Changed: 4 Warnings: 0 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql>

您现在可以退出。 BEGUERADJ。

无法访问mysql数据库

1 个答案: