In many cases, a web application is nothing more than a front end for a database (DB). In fact, what makes web pages dynamic is precisely the fact that there is a significant amount of data behind them. In this chapter you will learn to working with databases and SQL.
A database consists of organized data, that is, the data itself and a schema that provides data structures. Nowadays, most databases are organized in tables consisting of rows and columns. This is a natural way of organizing data, and you’re probably ...
