1.CDO>  DEFINE FIELD PRICE
      cont>   DATATYPE IS LONGWORD
      cont>   INPUT_VALUE IS REQUIRED.

      In this example, the DEFINE FIELD command includes an INPUT_
      VALUE property that requires at least one input character for
      the PRICE field element.

    2.CDO>  CHANGE FIELD PRICE
      cont>   NOINPUT_VALUE.

      In this example, the NOINPUT_VALUE keyword removes the INPUT_
      VALUE property from the PRICE field element.