Methods for changing passwords in MySQL include using the SET PASSWORD statement, using the ALTER USER statement, using the mysqladmin tool, using MySQL Workbench, etc. Detailed introduction: 1. Using the SET PASSWORD statement is the simplest way to modify the MySQL password; 2. Using the ALTER USER statement. Starting from MySQL version 5.7.6, you can use the ALTER USER statement to modify the user's password, etc.
MySQL is a commonly used relational database management system. In order to protect the security of the database, it is a good security practice to regularly change the MySQL password. In MySQL, you can change the password through the following methods:
1. Use the SET PASSWORD statement:
Using the SET PASSWORD statement is the simplest way to change the MySQL password. You can use the following syntax to change the password:
SET PASSWORD FOR 'username'@'hostname' = PASSWORD('new_password');
In the above syntax, 'username' is the user name to change the password, 'hostname' is the user's host name (such as localhost or % means all hosts), ' new_password' is the new password.
For example, to change the password of user "root" to "new_password", you can use the following statement:
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new_password');
2. Use the ALTER USER statement:
From MySQL 5.7 Starting from version .6, you can use the ALTER USER statement to modify the user's password. The syntax for using the ALTER USER statement is as follows:
ALTER USER 'username'@'hostname' IDENTIFIED BY 'new_password';
In the above syntax, 'username' is the user name whose password is to be changed, 'hostname' is the user's host name, and 'new_password' is the new password.
For example, to change the password of user "root" to "new_password", you can use the following statement:
ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
3. Use the mysqladmin tool:
mysqladmin is provided by MySQL A command line tool that can be used to manage MySQL servers. You can use the mysqladmin tool to change the password. The syntax for using the mysqladmin tool to change the password is as follows:
mysqladmin -u username -p password 'new_password'
In the above syntax, 'username' is the user name whose password is to be changed, and 'new_password' is the new password. After executing the above command, the system will prompt you to enter the current password, and then enter the new password to complete the password change.
For example, to change the password of user "root" to "new_password", you can use the following command:
mysqladmin -u root -p password 'new_password'
4. Use MySQL Workbench:
MySQL Workbench is MySQL The officially provided graphical management tool can easily manage and operate MySQL database. Through MySQL Workbench, you can easily change the password of a MySQL user.
In MySQL Workbench, select the user whose password you want to change, then right-click the user and select the "Set Password..." option. In the pop-up dialog box, enter the current password and new password, and click the "Apply" button to complete the password change.
In summary, methods for changing passwords in MySQL include using the SET PASSWORD statement, ALTER USER statement, mysqladmin tool and MySQL Workbench, etc. Regardless of which method is used, you will need to provide your current password and new password to complete the password change. In order to protect the security of the database, it is recommended to regularly change the MySQL password and ensure the complexity and security of the password. In addition, attention should be paid to protecting the security of the database server, restricting remote access, and regularly updating MySQL to obtain the latest security patches.
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