What is the format of mysql's default account password?

MySQL's default account is "root". In versions prior to MySQL 5.6, the default password is empty. Starting from MySQL 5.7, the default password is set to a generated random string, which contains Uppercase and lowercase letters, numbers, and special characters.

The operating environment of this tutorial: windows10 system, mysql8.0.16 version, DELL G3 computer.

MySQL is a commonly used relational database management system used to store and manage large amounts of data. When we install MySQL, a default account and password will be automatically created for us to log in and manage the database.

MySQL's default account is "root", which means that the user has the highest level of permissions and can perform any database operations. The default password varies depending on the version.

In MySQL In versions before 5.6, the default password is empty, that is, there is no password. This means that you only need to enter the username "root" to log in to the MySQL server. However, due to security issues, from MySQL Starting from version 5.7, a more secure password verification mechanism has been introduced, so the default password has changed.

FromMySQL Starting with version 5.7, the default password is set to a generated random string containing uppercase and lowercase letters, numbers, and special characters. This password is stored in the system's log file, and the default password can be found by viewing the log file. The location of the log files depends on the operating system used and the MySQL installation configuration.

In order to facilitate users to find the default password, MySQL will give a temporary password when starting. Users can use this password to log in and change the password. Generally, the default password can be found through the following steps:

1. Open the MySQL log file, usually `/var/log/mysql/error.log`.

2. In the log file, you can find keywords similar to "temporary password", followed by the default temporary password.

3. Use this password to log in to the MySQL server.

4. After successful login, use the following command to change the password:

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

Here `new_password` represents The new password you want to set.

Please note that MySQL's default password is to protect the database from unauthorized access. If you forget the default password, you need to reset it according to the method provided in the MySQL documentation to ensure the security of the database.

In short, the default account of MySQL is "root", and depending on the version, the default password may be empty or a random string generated by the system. Users can find the default password by viewing the system log file and follow MySQL's documentation for password modification and reset. Remember that in actual applications, you should pay attention to the security of the database and avoid using default passwords or weak passwords to protect data security. .

The above is the detailed content of What is the format of mysql's default account password?. For more information, please follow other related articles on the PHP Chinese website!