Data in the real world
In this chapter, you are going to learn how to use queries in complex scenarios to get the data you want. To this point, you’ve worked with the database in a fairly superficial manner. As this is a book on practical application of the concepts, you really need to experience working with data in real-world scenarios.
Often, when working with data, there will be a need to perform join operations across multiple tables and then use that data in some manner. There are a couple of ...
