DesktopServer comes with PHPMyAdmin which allows you to manage your MySQL databases. You can access this tool two ways.
In the left bottom corner is a [ Sites ] button, click it. This will open a page in your default browser, at the top is a menu item called "Tools". Click the Tools menu item and a list with the link to PHPMyAdmin - MySQL Administration.
Open your favorite browser and visit: http://localhost/phpmyadmin/