>SELECT cast((5411.000455/0.000020) as numeric(16,6)) as mount FROM >MON$ATTACHMENTS r
This particular query can be rewritten as SELECT 5411.000455*cast(1/0.000020 as integer) as mount FROM MON$ATTACHMENTS r Though it will not work equally well with other numbers, at least not if cast(1/0.xxxxxx as numeric(16, 4)) doesn't yield sufficient precision when doing 5411.000455*ResultFromAbove. HTH, Set