How to change user password in MySQL

MySQL is a widely used relational database management system. Whether you are a developer or an administrator, properly managing MySQL user accounts is an important step in ensuring the security and integrity of your database. In MySQL, user passwords are the core element to ensure data security, so every administrator must know how to correctly change MySQL user passwords. This article will introduce in detail how to change user passwords in MySQL, aiming to help administrators better protect the database.

How to view MySQL users

Before starting, the administrator needs to know how to view the user accounts registered in MySQL. You can use the following command to list all users on the database and display their permissions:

SHOW GRANTS FOR 'user'@'localhost';

This command will display Given 'user''s current permissions and hostname. For example, if you want to see the "root" user permissions and hostname, you can run the following command:

SHOW GRANTS FOR 'root'@'localhost';

Additionally, if you want to know all the users on the MySQL server and their corresponding host names, you can run the following command in the MySQL console:

SELECT User, Host FROM mysql.user;

How to change the MySQL user password

It is very easy to change the MySQL user password. Administrators can use the following command to modify the MySQL user password:

ALTER USER 'user'@'localhost' IDENTIFIED BY 'new_password';

Using this command, you must Replace 'user' with the username whose password you want to change, and 'new_password' with the new password itself. Note that the username and password must be enclosed in single quotes.

For example, if you want to change the password of user 'test' to '123456', you can run the following command:

ALTER USER 'test'@'localhost' IDENTIFIED BY '123456';

This command will change the password of the specified user to a new password.

Creating new users and deleting users in MySQL is also very simple, but this is beyond the scope of this article. Administrators can learn more through the MySQL documentation.

Summary

MySQL is a widely used relational database management system. Therefore, correctly managing MySQL user accounts is an important step in ensuring database security and integrity. Every administrator must know how to correctly change MySQL user passwords. In MySQL, you can use the SHOW GRANTS command to view registered users and their permissions, you can use the ALTER USER command to modify user passwords, and you can also learn more about other operations related to managing users through the MySQL documentation. Most importantly, by properly managing user passwords, administrators can ensure the security and integrity of their databases, thereby protecting their organization's data assets.

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