Issues using SUM Function in query

Question

I have pasted two queries Query1 (calculating counts for total_ships and ships_released) and Query2 (calculating the two same counts and then calculating SUM for total_shipments and I am having problem in this)
Query 1:
select  b.loc , b.week, b.vvalue2, b.Total_ships, nvl(a.up_date,'None') as datee , nvl( a.ships_rel_total,0) as Total_released
from (
      SELECT l.loc  , sr1.vvalue1 as Week, sr.vvalue2 , to_char(ss.udate, 'YYYY-MM-DD') as up_date ,  count(distinct s.ship_id ) as ships_rel_total
      FROM ship s, loct l,
         ship_num sr1,  ship_num sr, ship_stat ss, ship_stat ss1
      WHERE ......
      Group by l.loc , sr1.vvalue1, sr.vvalue2 , to_char(ss.udate, 'YYYY-MM-DD')
      ) A,
( SELECT distinct l.loc  , sr1.vvalue1 as Week, sr.vvalue2 , count(s.ship_id ) as Total_Ships
      FROM ship s, loct l,
          ship_num sr1,  ship_num sr, ship_stat ss, ship_stat ss1
      WHERE ......
      Group by c.loc , c.week , c.vvalue2  ) B
where a.loc (+) = b.loc
and a.vvalue2  (+) = b.vvalue2
order by b.loc, b.week , b.vvalue2,a.up_date; Query 1 Output:
*OUTPUT*
LOC         WEEK          VALUE2        TOTAL_SHIPS       DATEE         TOtAL_SHIPS_RELEASED
AA          111              BB              12                  10-05-12            2
AA          111              BB              12                  11-05-12            4
AA          111              CC              2                    14-05-12            1Then I added sum function for total_ships and its not giving me result what I need :(
Query 2:
select  b.loc , b.week, b.vvalue2, b.sum_ships, nvl(a.up_date,'None') as datee , nvl( a.ships_rel_total,0) as Total_released
from (
      SELECT l.loc  , sr1.vvalue1 as Week, sr.vvalue2 , to_char(ss.udate, 'YYYY-MM-DD') as up_date ,  count(distinct s.ship_id ) as ships_rel_total
      FROM ship s, loct l,
         ship_num sr1,  ship_num sr, ship_stat ss, ship_stat ss1
      WHERE ......
      Group by l.loc , sr1.vvalue1, sr.vvalue2 , to_char(ss.udate, 'YYYY-MM-DD')
) A,
( Select  c.loc, c.week , c.vvalue2 ,  sum(c.total_ships) sum_ships 
from
    ( SELECT distinct l.loc  , sr1.vvalue1 as Week, sr.vvalue2 , count(s.ship_id ) as Total_Ships
      FROM ship s, loct l,
          ship_num sr1,  ship_num sr, ship_stat ss, ship_stat ss1
      WHERE ......
      Group by l.loc , sr1.vvalue1 , sr.vvalue2  ) C
Group by c.loc , c.week , c.vvalue2  ) B
where a.loc (+) = b.loc
and a.vvalue2  (+) = b.vvalue2
order by b.loc, b.week , b.vvalue2,a.up_date;  my query is giving me this :(
Query 2 Output:
LOC         WEEK          VALUE2        *SUM_SHIPS*       DATEE         TOtAL_SHIPS_RELEASED
AA          111                BB              26                 10-05-12            2
AA          111                BB              26                 11-05-12            4
AA          111                CC              26                 14-05-12            1
But I need a result like this:
LOC         WEEK          VALUE2        SUM_SHIPS       DATEE         TOtAL_SHIPS_RELEASED
AA          111                BB              14              10-05-12            2
AA          111                BB              14              11-05-12            4
AA          111                CC              14              14-05-12            1

Answer 1

Hi,
It sounds like you have a Fan Trap , where a one-to-many relationship is causing some items to be counted many times.
The usual solution is to compute the aggregates before doing the one-to-many join. Analytic functions may make this simpler.
Sorry, I can't show you exactly how to do it without the exact data.
Post CREATE TABLE and INSERT statements for all tables involved, and also post the results you want from that data (if different from what you've already posted).
Explain, using specific examples, how you get those results from that data.
Simplify the problem as much as possible. If the problem only concerns the total_ships column, then only post the data needed to compute total_ships. This includes all the columns involved in the joins and GROUP BY clauses.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}