1.CDO>  CHANGE FIELD POSTAL_CODE
      cont>    DESCRIPTION "A 5 DIGIT POSTAL_CODE: NOTE AUDIT"
      cont>    AUDIT "CHANGED TO 9 DIGIT POSTAL_CODE 6/30/90".

      In this example, the CHANGE FIELD command modifies the
      description clause and adds an audit clause to the POSTAL_
      CODE field element.

    2.CDO>  CHANGE FIELD TOTAL
      cont>    NOINITIAL_VALUE.

      In this example, the CHANGE FIELD command removes the INITIAL_
      VALUE field property with the NO keyword.