What is a room database?

How does room database work?

Introduction to Room Persistent Library in Android.1createOpenHelper() is invoked when you build instance of your database using Room. ... 2createInvalidationTracker() creates an invalidation tracker which keeps a list of tables modified by queries and notifies its callbacks about these tables.How does Room work internally? - MindOrks

What are the advantages of using a room database?

In particular, Room provides the following benefits:Compile-time verification of SQL queries.Convenience annotations that minimize repetitive and error-prone boilerplate code.Streamlined database migration paths.Save data in a local database using Room | Android Developers

What is the use of room database in Android?

Room Database is a part of the Android Architecture components which provides an abstraction layer over SQLite which allows for more robust database access while still providing the full power of SQLite.

Do I need to close room database?

No, according to https://stackoverflow.com/a/7739454/1090523 the system will handle the closing of the database connection when the app is closed. No leak will occur, and it is also more performant to keep a connection open and reuse it than to keep opening and closing connections.