with vtab as (
    select
        t.*,
        count(*) over() as cnt,
        row_number() over(order by col1) as rn
    from table_name t
    where ...
)
select col1, col2, col3, ..., cnt
from vtab
where rn <= 10

select rownum as rn, p.*, t.qty
from
(
  select count(*) as qty
  from table_name
  where ...
) t
cross /* left */ join
(
  select *
  from table_name p
  where ...
  -- order by ...
) p
where (rownum <= 10)