android NullPointerException when executing query on SQLite database

I'm trying to read data out of a database I created, but I always get a NullPointerException when trying to fetch all my records. I practically copypasted the code from another application I have running perfectly, but somehow I'm doing it wrong here. The NullPointerException is at the line of ``` return mDb.query(DATABASE_TABLE_LOCALLOGIN, new String[] {LOCALLOGIN_ID, LOCALLOGIN_LOGIN, LOCALLOGIN_PASSWORD}, null, null, null, null, null); ``` Here's the relevant code (don't mind the string arrays, its for adding tables later on: GoingOutDbAdapter.java ``` public class GoingOutDbAdapter { private static final String DATABASE_NAME = "GoingOutData"; private static final String DATABASE_TABLE_LOCALLOGIN = "LocalLogin"; public static final String LOCALLOGIN_ID = "LocalLogin_id"; public static final String LOCALLOGIN_LOGIN = "Login"; public static final String LOCALLOGIN_PASSWORD = "Password"; private static final String TAG = "Debugstring"; private DatabaseHelper mDbHelper; private SQLiteDatabase mDb; private static final String[] DATABASE_CREATE = { "CREATE Table " + DATABASE_TABLE_LOCALLOGIN + " ( " + LOCALLOGIN_ID + " integer PRIMARY KEY Autoincrement, " + LOCALLOGIN_LOGIN + " text NOT NULL, " + LOCALLOGIN_PASSWORD + " text NOT NULL );"}; private final Context mCtx; private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { for(int i = 0; i < DATABASE_CREATE.length; i++){ Log.d(TAG,DATABASE_CREATE[i]); db.execSQL(DATABASE_CREATE[i]); } } } public GoingOutDbAdapter(Context ctx) { this.mCtx = ctx; } public GoingOutDbAdapter open() throws SQLException { mDbHelper = new DatabaseHelper(mCtx); mDb = mDbHelper.getWritableDatabase(); return this; } public void close() { mDbHelper.close(); } public Cursor fetchAllLocalLogins() { return mDb.query(DATABASE_TABLE_LOCALLOGIN, new String[] {LOCALLOGIN_ID, LOCALLOGIN_LOGIN, LOCALLOGIN_PASSWORD}, null, null, null, null, null); } } ``` MyActivity.java, where I call fetchAllLocalLogins ``` public class MyActivity extends Activity { /** Called when the activity is first created. */ private GoingOutDbAdapter mDbHelper; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mDbHelper = new GoingOutDbAdapter(this); setContentView(R.layout.main); Cursor localLogin = mDbHelper.fetchAllLocalLogins(); } } ```