@Dao
public interface SomeDao {
    @Query("SELECT * FROM SomeDao")
    Flowable<List<SomeDao>> getAll();

    @Insert(onConflict = OnConflictStrategy.REPLACE)
    void insert(List<SomeDao> daos);

    @Query("SELECT * FROM SomeDao where id = :id")
    Flowable<SomeDao> getById(int id);

    @Query("DELETE FROM SomeDao")
    void deleteAll();
}