Application is made of code. To make an application you need to write code. If it is a web application, you need to create forms which could allow you to enter data into the database. No matter you are using PhpMyAdmin or PhpPgAdmin or any other database administration system, you cannot use it for long for the simple reason that they cannot be made a part of your very own application. If you do, you are risking the security and integrity of your database. So what you do is to write all that stuff by yourself. However, with QCubed, there is not much need of that much pain for it does the code generation part for you by itself. It creates the classes you would need during development. It creates the forms for entering data (and with automated validation at basic levels as well). It creates panels for the data entry as well so you can embed the functionality into any other page you desire. Well, there are so many other things to be said that they won't fit in a single article. This is why we have split things and put them into separate articles. You can read them to learn about what code-generation is, how to do it, why to do it and how it helps. Read here:
I hope this will guide you through. In case you have questions, comment below to let me know.