private void dropData() throws RetsServerException, SQLException {
    ConnectionHelper helper = RetsServer.createHelper();
    Connection connection = null;
    Statement statement = null;
    try {
      connection = helper.getConnection();
      statement = connection.createStatement();

      statement.execute("delete from rets_property_res");
      helper.commit();
    } finally {
      if (statement != null) statement.close();
      helper.close(LOG);
    }
  }