Howdy. I'm new, too. Find yourself a good tutorial utilizing the scripting language of your choice... I like PHP. In a PHP/MySQL scenario, you use PHP scripting in your code to establish a connnection to the MySQL db, use more PHP to compose SQL commands as strings, and then send those strings to the MySQL server.
Here's a tutorial I'm going through now...
http://www.freewebmasterhelp.com/tutorials/phpmysql
Hope it helps get you going...
--ST