1.CDO>  DEFINE FIELD AMOUNT
      cont>   DATATYPE IS UNSIGNED NUMERIC
      cont>   SIZE IS 8 DIGITS
      cont>   INITIAL_VALUE IS 0.

      In this example, the DEFINE FIELD command assigns 0 as the
      initial value to the AMOUNT field element.

    2.CDO>  CHANGE FIELD AMOUNT
      cont>   NOINITIAL_VALUE.

      In this example, the NOINITIAL_VALUE keyword removes the
      INITIAL_VALUE property from the AMOUNT field element.