code: public void save(Map<String, Object> row) throws Exception {
          Tuple2<List<String>, String> data = sqlFromRow(row);
          PreparedStatement statement = conn.prepareStatement(data._2());
          int i = 1;
          for(String columnName:data._1()) {
              statement.setObject(i, row.get(columnName));
              i++;
          }
          statement.executeUpdate();
      }
docs: Saves data.
  @param row Data structure representing a row as a Map of column_name:column_value
  @throws SQLException