008D8EF2 You tried to sort by too large a value or too many
    values. (Total size: <number>)

    Explanation:

    The total size of the sort keys you specified and the internal
    sort information used by DEC DATATRIEVE was greater than 255
    characters long.

    User Action:

    If you specified a very large field, you should sort on just the
    first part of it. You can do this in two ways:

    o  Redefine the record so the entire field is a group field and
       the first part of the record is an elementary field that can
       be sorted on.

    o  Use the function FN$STR_EXTRACT to extract the first part of
       the field.