What are the requirements for setting the default MySQL account password?

What are the requirements for setting the MySQL default account password?

MySQL is a popular open source relational database management system used to manage and store large amounts of data. When installing MySQL, a default account and password will be set to ensure data security. There are some requirements and precautions for setting the default account password. This article will introduce the requirements and sample code for the MySQL default account password.

1. Account requirements:

1. The default super user account is "root", which has the highest authority and can manage the MySQL server and all databases.
2. The user name of the MySQL default account cannot exceed 16 characters, and must be composed of uppercase and lowercase letters, numbers, or underscores.
3. By default, MySQL allows the "root" account to log in locally, and remote login permissions need to be set carefully.
4. In order to enhance security, it is recommended to set a complex password for the "root" account, including uppercase and lowercase letters, numbers, and special characters.

2. Password requirements:

1. The length of MySQL password cannot be less than 8 characters.
2. Password strength requirements include a combination of uppercase and lowercase letters, numbers, and special characters. Avoid using simple passwords.
3. MySQL passwords need to be case-sensitive when setting.

Sample code:

After installing MySQL, you can use the following sample code to set the default account password:

1. First, log in to the MySQL service Use the following command:

mysql -u root -p

2. After entering the login password, enter the MySQL command line interface. You can use the following command to change the password of the "root" account:

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

3. After changing the password, use the following command to refresh the permissions:

FLUSH PRIVILEGES;

With the above sample code, the password of the MySQL default account can be easily changed and meet the required security requirements.

In summary, there are some requirements and precautions for setting the default MySQL account password. Users should pay attention to the complexity of the account and password when setting the default account password to ensure data security. I hope this article can help readers better understand the setting requirements for MySQL default account password.

The above is the detailed content of What are the requirements for setting the default MySQL account password?. For more information, please follow other related articles on the PHP Chinese website!