Using the Room library for data persistence
In this section, we will discuss how to persist data in Android applications and how we can use the Room library to do this.
Android offers many ways for persisting data on an Android device, mostly involving files. Some of these files have a specialized approach to persisting data. One of these approaches is in the form of SQLite. SQLite is a special type of file in which structured data can be stored using Structured Query Language (SQL) queries, as with other types of databases such as MySQL and Oracle.
In the past, if developers wanted to persist data in SQLite, they were required to manually define tables, write queries, and transform objects containing this data into the appropriate formats for performing create, read, update, and delete (CRUD) operations. This type of work involved a load of boilerplate code that was susceptible to bugs. Room is the answer to that by providing an abstraction layer on top of the SQLite operations...
