SUM function issue

Question

Hi everyone,
I have a problem with SUM function in SQL query on Oracle 11g database. Maybe you will be able to help me.
Problem:
I want to shows summary costs for shipments separately for each service provider and for each month they did the shipments.
Data is stored in SHIPMENT AND SHIPMENT_COST table as shown below. The problem is that summary function I use sums base costs (marked as B in SHIPMENT_COST table) for each accessorial cost (marked as A in SHIPMENT_COST table). In example for shipment 10005031 we have 4 accessorial costs so it shows 6120 in BASE_COST column. I tried to use distinct in summary but then we have a problem with shipment id 201307133713_0383 which has 3 base costs equal to 221.54 so with distinct it will show 221.54 instead of 221.54x3.
SHIPMENT table:
START_TIME               SHIPMENT_GID               SERVPROV_GID
2013-06-25                    10005031                         T222176
2013-06-15                    201307133713_0383          T76180
SHIPMENT_COST table:
SHIPMENT_GID                        COST                                       COST_TYPE
10005031                                 1530                                        B
10005031                                  30.6                                        A
10005031                                  120                                         A
10005031                                  400                                         A
10005031                                  100                                         A
201307133713_0383                   221.54                                    B
201307133713_0383                   221.54                                    B
201307133713_0383                   221.54                                    B
RESULT table:
SHIPMENT_START_DATE
SERVPROV
BASE_COST
CLAIM_COST
06/2013
T76180
664.62
null
06/2013
T222176
6120
650.6
Query:
SELECT DISTINCT TO_CHAR(SH.START_TIME,'MM/YYYY') AS SHIPMENT_START_DATE,
        SH.SERVPROV_GID AS SERVPROV,
        SUM(SHCOST.COST) AS BASE_COST,
        SUM(SHCOST_CLAIM.COST) AS CLAIM_COST
FROM    SHIPMENT SH,
        SHIPMENT SHC
        LEFT OUTER JOIN SHIPMENT_COST SHCOST ON (SHC.SHIPMENT_GID = SHCOST.SHIPMENT_GID AND SHCOST.COST_TYPE = 'B'),
        SHIPMENT SHC_CLAIM
        LEFT OUTER JOIN SHIPMENT_COST SHCOST_CLAIM ON (SHC_CLAIM.SHIPMENT_GID = SHCOST_CLAIM.SHIPMENT_GID AND SHCOST_CLAIM.COST_TYPE = 'A')
WHERE 1=1
        AND SHC.SHIPMENT_GID = SH.SHIPMENT_GID
        AND SHC_CLAIM.SHIPMENT_GID = SH.SHIPMENT_GID
        AND    SH.SHIPMENT_GID IN ('10005031','201307133713_0383')
        GROUP BY TO_CHAR(SH.START_TIME,'MM/YYYY'),
        SH.SERVPROV_GID
Best Regards,
Łukasz

Answer 1

with SHIPMENT (START_TIME,SHIPMENT_GID,SERVPROV_GID) as
select to_date('2013-06-25','yyyy-mm-dd'),'10005031','T222176' from dual union all
select to_date('2013-06-15','yyyy-mm-dd'),'201307133713_0383','T76180' from dual
SHIPMENT_COST(SHIPMENT_GID,COST,COST_TYPE)
as
select '10005031','1530','B' from dual union all
select '10005031','30.6','A' from dual union all
select '10005031','120','A' from dual union all
select '10005031','400','A' from dual union all
select '10005031','100','A' from dual union all
select '201307133713_0383','221.54','B' from dual union all
select '201307133713_0383','221.54','B' from dual union all
select '201307133713_0383','221.54','B' from dual
select *
  from (select to_char(t.START_TIME, 'mm/yyyy'),
               t.SERVPROV_GID,
               c.COST,
               c.COST_TYPE
          from SHIPMENT t
          join SHIPMENT_COST c
            on t.SHIPMENT_GID = c.SHIPMENT_GID)
pivot(sum(COST) for COST_TYPE in('A' CLAIM_COST,'B' BASE_COST))
TO_CHAR(T.START_TIME,'MM/YYYY'
SERVPROV_GID
CLAIM_COST
BASE_COST
06/2013
T76180
664.62
06/2013
T222176
650.6
1530
Ramin Hashimzade