Duplicate rows quaetion

[slimdave]

select
   *
from
   lot
where
   (issueid,quantity) in
      (
      select
         issueid,
         quantity
      from
         lot
      where
         trunc(createdate) = TO_DATE('06/16/2003','MM/DD/YYYY')  or
         trunc(createdate) = TO_DATE('06/17/2003','MM/DD/YYYY')
      group by
         issueid,
         quantity
      having
         count(*) > 1
       )