What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If you are referring to creating a database like MySQL etc. you can do so by hosting it to your own server you need to have a knowledge in programming like PHP and MySQL to get start with. Here's a guide on how to send data to your MySQL database from through your form http://www.jotform.com/help/126-Form-to-MySQL.