Creates a view definition. A view is a relation that is not
    physically stored. Rather, it is a virtual structure that points
    to records from other relations. You define a view by specifying:

    o  A record selection expression to name the criteria for
       selecting the relations and records

    o  A set of fields from those relations

    Example:

    DEFINE VIEW EMP_NAME OF E IN EMPLOYEES.
       E.FIRST_NAME.
       E.MIDDLE_INITIAL.
       E.LAST_NAME.
    END EMP_NAME VIEW.