Summary

In this chapter, we learned that models are building blocks of everything else we build that accesses data in a database. They provide the containers where all of a project's data will exist as a data storage device for this application. We now have a toolbox with tools related to the structure of the tables, such as the columns that exist or rules/constraints that we apply to them. Other tools help us to link these tables together that build the relationships between those tables. We also know how to transform the data that we have to provide other data not kept in those tables, but rather derived from it. Some of the concepts add performance power by doing work in the background, indexing data, and reducing the time that it takes to look up information. Querying objects is also a complex subject and there is a lot of material regarding it; use the concepts in this chapter to help guide you through researching more advanced ways of querying data, to help with complex...