Not able to update sqlite_sequence table using RoomDatabase.query

Question

We try to update sqlite_sequence with the following code.

WeNoteRoomDatabase weNoteRoomDatabase = WeNoteRoomDatabase.instance();
weNoteRoomDatab         


        

Answer 1

I'm using room database version 2.2.5

Here I'm unable to execute this query using Room Dao structure, so make one simple class and access method as like this and I got successful outcomes so this one is tested result. I'm using RxJava and RxAndroid for same.

public class SqlHelper {

    private static SqlHelper helper = null;

    public static SqlHelper getInstance() {
        if (helper == null) {
            helper = new SqlHelper();
        }
        return helper;
    }

    public Completable resetSequence(Context context) {
        return Completable.create(emitter -> {
            try {
                AppDatabase.getDatabase(context)
                        .getOpenHelper()
                        .getWritableDatabase()
                        .execSQL("DELETE FROM sqlite_sequence WHERE name=''");
                emitter.onComplete();
            } catch (Exception e) {
                emitter.onError(e);
            }
        });
    }
}

Execute:

SqlHelper.getInstance()
         .resetQuizSequence(context)
         .subscribeOn(Schedulers.io()
         .observeOn(AndroidSchedulers.mainThread())
         .subscribe(() -> {}, error -> {});