code: void deleteAssociatedFiles(String messageNonce) {
  		SQLiteDatabase db = null;
  		try {
  			db = getWritableDatabase();
  			int deleted = db.delete(TABLE_COMPOUND_MESSAGE_FILESTORE, COMPOUND_FILESTORE_KEY_MESSAGE_NONCE + " = ?", new String[]{messageNonce});
  			ApptentiveLog.d(DATABASE, "Deleted %d stored files.", deleted);
  		} catch (SQLException sqe) {
  			ApptentiveLog.e(DATABASE, "deleteAssociatedFiles EXCEPTION: " + sqe.getMessage());
  			logException(sqe);
  		}
  	}
docs: region Files