You can only view your existing MySQL user name via cPanel and it is not possible to view the existing MySQL password. But cPanel allows you to change the existing MySQL user password in simple steps.

Warning: After changing the password, it must be updated in the database connection string to ensure the functioning of website. Otherwise, your website may malfunction. Hence it is highly recommended to discuss with the developer before changing the MySQL user password.

The below tutorial will guide you to view the MySQL user name and password change with ease.