Please provide a Migration in the builder or call fallbackToDestructiveMigration in the builder in which case Room will re-create all of the tables

If you don’t want to provide migrations and you specifically want your database to be cleared when you upgrade the version, call fallbackToDestructiveMigration in the database builder

database = Room.databaseBuilder(context.getApplicationContext(),
                    UsersDatabase.class, "Sample.db")
            .fallbackToDestructiveMigration()
            .build();