can anybody help me to create a link between front end and back end using database concepts
Can you please modify your question to be a bit more specific, as in, what database are you using, what is the front end, on what platform, what have you already tried, are there any error messages. These can help us provide some pointers to help you better
Also do read this link http://www.catb.org/esr/faqs/smart-questions.html I am sure it will help you a lot
I would suggest you go through this tutorial, basically what you are doing is writing a php script which will interact with the database. PHP is a server-side scripting language, so it runs on your server. After running on server, it can output HTML output which will be shown to the user. The tutorial should help you get started. Please note it assumes that you have a LAMP server installed on your system.