根据MySql版本的不同，该过程有所不同。按照您的版本所描述的步骤进行操作:

HINTS - Read before the instructions page for your version of MySql* In step 5: Instead of run CMD, create a shortcut on your desktop calling CDM.exe. Then right-click on the shortcut and select "Execute as Administrator". In step 6: Skip the first proposed version of the command and execute the second one, the one with the --defaults-file parameter Once you execute the command, if everything is ok, the CMD window remains open and the command of step 6 continues executing. Simply close the window (click 'x'), and then force close MySQl from the Task Manager. Delete the file with the SQL commands, and start again MySQL. The password must be changed now.

5.0 http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html

5.1 http://dev.mysql.com/doc/refman/5.1/en/resetting-permissions.html

…只需在链接中更改版本(5.5,5.6,5.7)

多亏了@thusharaK，我可以在不知道旧密码的情况下重置根密码。

在ubuntu上，我做了以下操作:

sudo service mysql stop
sudo mysqld_safe --skip-grant-tables --skip-syslog --skip-networking

然后在新的终端运行mysql:

mysql -u root

并执行如下命令修改密码:

UPDATE mysql.user SET authentication_string=PASSWORD('password') WHERE User='root';
FLUSH PRIVILEGES;

在MySQL 5.7中，MySQL中的password字段。用户表字段被删除，现在字段名是'authentication_string'。

退出mysql安全模式，启动mysql服务:

mysqladmin shutdown
sudo service mysql start

你找不到它。它存储在一个数据库中，您需要根密码才能访问该数据库，即使您以某种方式获得了访问权限，它也会使用单向散列进行散列。您可以重置:如何重置Root用户密码

系统:

中佐的Linux 7 位于华盛顿市郊1414区

过程:

Open two shell sessions, logging in to one as the Linux root user and the other as a nonroot user with access to the mysql command. In your root session, stop the normal mysqld listener and start a listener which bypasses password authentication (note: this is a significant security risk as anyone with access to the mysql command may access your databases without a password. You may want to close active shell sessions and/or disable shell access before doing this): # systemctl stop mysqld # /usr/sbin/mysqld --skip-grant-tables -u mysql & In your nonroot session, log in to mysql and set the mysql root password: $ mysql mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('MyNewPass'); Query OK, 0 rows affected, 1 warning (0.01 sec) mysql> quit; In your root session, kill the passwordless instance of mysqld and restore the normal mysqld listener to service: # kill %1 # systemctl start mysqld In your nonroot session, test the new root password you configured above: $ mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. ... mysql>

根据MySql版本的不同，该过程有所不同。按照您的版本所描述的步骤进行操作:

HINTS - Read before the instructions page for your version of MySql* In step 5: Instead of run CMD, create a shortcut on your desktop calling CDM.exe. Then right-click on the shortcut and select "Execute as Administrator". In step 6: Skip the first proposed version of the command and execute the second one, the one with the --defaults-file parameter Once you execute the command, if everything is ok, the CMD window remains open and the command of step 6 continues executing. Simply close the window (click 'x'), and then force close MySQl from the Task Manager. Delete the file with the SQL commands, and start again MySQL. The password must be changed now.

5.0 http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html

5.1 http://dev.mysql.com/doc/refman/5.1/en/resetting-permissions.html

…只需在链接中更改版本(5.5,5.6,5.7)

这招对我很管用:

在终端类型上执行如下操作

$ sudo mysql -u root -p

Enter password://直接按Enter

mysql >