Indicates the exception condition returned when SQL processes all
    the rows of a result table:

    o  When a cursor referred to in a FETCH, UPDATE, or DELETE
       statement is positioned after the last row

    o  When a query specifies an empty result table

    This is the same condition identified by a value of 100 in the
    SQLCODE variable, the value of '02000' in the SQLSTATE variable,
    and by the RDB$_STREAM_EOF error.