In the process of developing using Mac and MySQL, sometimes the MySQL password is forgotten, which is a very troublesome thing for developers who do not have a backup password. If you are facing this situation, don’t worry, this article will provide you with several methods to solve the problem of forgotten password.
- Using the Forgot Password Wizard
MySQL provides a Forgot Password Wizard to help you reset your password. First, you need to stop the MySQL service. Enter the following command in the terminal:
sudo /usr/local/mysql/support-files/mysql.server stop
Then start the MySQL service:
sudo /usr/ local/mysql/support-files/mysql.server start --skip-grant-tables
This will cause MySQL to start unauthenticated. You can change the root user's password during this time. Type the following command in the terminal window:
mysql -u root
If you successfully enter the MySQL system, you will see the MySQL command prompt. Enter the following command in MySQL:
FLUSH PRIVILEGES;
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new password');
Please change' New Password' and any other user passwords you need to change.
At the MySQL command prompt, enter quit; and stop the MySQL service so it starts in normal authentication mode:
sudo /usr/local/mysql/support-files/mysql. server stop
Now you can restart the MySQL service with the new password and verify the new password via the terminal:
mysql -u root -p
Enter your new password , and then continue development work.
- Reset MySQL Password
If you are unable to use the MySQL Forgot Password Wizard, you can manually reset the root user's password. This method may be more complicated than the Forgot Password Wizard, but it is a viable option. Here are the steps to reset your MySQL password:
a. Open a terminal and stop the currently running MySQL service:
sudo /usr/local/mysql/support-files/mysql.server stop
b. Start the MySQL service, but request a new password at startup:
sudo mysqld_safe --skip-grant-tables &
Please note that in this command, use The '&' symbol is added to make the process run in the background.
c. You have successfully connected to the MySQL database through the above command. Enter the following command to reset the password of the root user:
mysql -u root
mysql > use mysql;
mysql > update user set password=PASSWORD("New Password") where User='root';
mysql > flush privileges;
mysql > quit ;
Please change the 'new password' and other user passwords you need to change in the above command.
d. Now you need to stop the MySQL service and process:
ps aux | grep mysqld
kill(PID)
please command on the second line Use the specific PID you found in step three.
e. Restart the MySQL service:
sudo /usr/local/mysql/support-files/mysql.server start
Now you can re-authenticate using the new password MySQL and continue development work.
- Reset Password File
In addition to the methods described above, you can also reset the MySQL password by changing the password file. In this case, there is no need to stop and restart the MySQL service.
a. Open the password file in the terminal:
sudo nano /usr/local/mysql/data/mysql/user.MYD
b. Find the record of the root user :
mysql> select * from user where User='root';
If not found, please execute the following command:
mysql> insert into user (Host,User ,Password) values('%','root',password('new password'));
Please change the 'new password' and other user passwords you need to change in the above command.
c. Change the root user's password in the password file:
Once the root user's record is found, find the 'Password' column:
... | root | * xxxxx | ...
In the 'Password' column, xx represents the encrypted password. You can use the following command to generate a new password:
mysql>SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new password');
Please change 'new password' to The password you wish to use.
d. Save the changes to the password file and exit:
Since you don't need to start and stop MySQL, the changes should take effect immediately. You can verify that the new password takes effect via the command line:
mysql -u root -p
Summary:
Whichever method you choose to use to reset your MySQL password, make sure You update your passwords in your code to avoid similar password loss issues, and you back up your passwords regularly to prevent the same problem from happening again. As a programmer, password management and backups are very important, otherwise you may lose a lot of time and energy trying to restore your development environment.
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