Saving Data on Android

Chapter 8: The DAO Pattern
: Data Access Object is the pattern Room has 
implemented to execute queries on top of a specific set of entities. In this chapter, 
you'll learn how to define relations between entities and how to optimize queries 
between them.
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Chapter 9: Using Room with Google’s Android Architecture Component
: 
Room is not the only Architecture Component. Google also announced 
components like Lifecycle, LiveData, and DataModel. In this chapter, you'll learn 
how to use Room with the other architecture components.
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