Android - ลบข้อมูลจนหมดใน SQLite แล้วมีปัญหาตอน SELECT ครับ

db = this.getWritableDatabase();
			ContentValues Val = new ContentValues();
			Val.put("AccountID", "1");
			Val.put("AccountName","Other");
			db.insert(TABLE_MEMBER, null, Val);
			db.close();
			
			return new MatrixCursor(new String[] {"_id"});  

public Cursor SelectAllDataSpinner(){
		SQLiteDatabase db;
		db = this.getReadableDatabase();
		
		String StrSQL = "SELECT AccountID AS _id , * FROM " + TABLE_MEMBER;
		Cursor cursor = db.rawQuery(StrSQL, null);
		
		try{
			if(cursor.moveToFirst() && cursor.getCount() >= 1){
				  do{
					  return cursor;
				}while(cursor.moveToNext());
			  }
			
			db = this.getWritableDatabase();
			ContentValues Val = new ContentValues();
			Val.put("AccountID", "1");
			Val.put("AccountName","Other");
			db.insert(TABLE_MEMBER, null, Val);
			db.close();
			
			return new MatrixCursor(new String[] {"_id"});  
			}catch(Exception e){
				return null;
			}
	}