code: public final Double getDouble(final String pNm) throws ExceptionWithCode {
      if (this.doubles != null && this.doubles.keySet().contains(pNm)) {
        return this.doubles.get(pNm);
      }
      throw new ExceptionWithCode(ExceptionWithCode.WRONG_PARAMETER,
        "There is no field - " + pNm);
    }
docs: <p>Get column with Double val.</p>
  @param pNm column name
  @return Double column val
  @throws ExceptionWithCode if column not found