Specifies that Oracle Rdb can read the items in a list from
    either direction (up or down) or at random. The SCROLL keyword
    must be used if the following fetch options are desired:

    o  NEXT

    o  PRIOR

    o  FIRST

    o  LAST

    o  RELATIVE

    o  ABSOLUTE

    If SCROLL is not specified, the default for FETCH is NEXT. SCROLL
    is only supported for LIST cursors.