So many database like MySQL, Oracle, MS SQL to MS Access and even excel. They are all database because they hold your precious data. Now from the developer point of view connecting a database to your application is very easy once you know how actually to connect it, but if you are new its the difficult part in your life.
I like to tell you a website that helps you solve this difficult problem of connecting a database.
» Read more: Getting Confused to how to make a database connection ? This post will fix your problem
