This chapter builds upon the work from the previous chapter, Chapter 4, Fundamentals of Database Design. The reason why the tasks in this chapter are considered mission-critical is because they will teach you how to perform vital database operations that will need to be performed every day. These tasks include reading, writing, updating, and deleting documents from a database.
First, you will be presented with a series of common tasks based upon the Sweets Complete dataset. You'll then learn how to define domain classes, which perform critical database access services, including performing queries and adding, editing, and deleting documents. These capabilities are then applied to practical tasks, including updating product information and generating a sales report that details total purchases by month and by year...
