20.1 Introduction
Many contemporary Web applications require the use of a relational database . Such a database is used to store the application’s data and produce the application’s information. For a database to be effective, we must carefully plan its details. This is usually done by constructing one or more data models . The importance of good database design cannot be understated. A database that is well designed will make the development of an application much easier and more efficient. What’s more is the fact that good database design leads ...
