Again the SUM and DISTINCT Problem (With SQL Statement)

Question

Here is the actual SQL,
select
NVL(l.pr_cust_prod,'zzzzz') A,
NVL(l.pr_prod_code,'zzzzz') B,
NVL(l.pr_lot_no,'zzzzz') C,
NVL(l.db_waf_qty,'99999') lotQty,
NVL(t.db_cust_po,'zzzzz') poNum,
NVL(p.oe_po_line,'99999') poLineNum,
i.db_shpmt_no invNum,
from
db_invoice i, db_line_lot l, db_inv_item t, db_prod_line p
where
l.db_shpmt_no like 'U388%'
and i.db_invo_date > sysdate - 500
and l.pr_run_type = 'PR'
and l.db_shpmt_no = i.db_shpmt_no
and l.db_shpmt_no = t.db_shpmt_no
and l.db_item_no = t.db_item_no
and p.db_ref_numa1 = t.db_tsmc_po
and l.db_shpmt_no not in
(select distinct db_shpmt_no from ftp_cust_ship
where DB_MAST_ACCT='U388' and sys_name='SENT')
and l.pr_prod_code like '%Z_'
group by l.pr_lot_no, l.db_line_numb, l.pr_cust_prod, l.pr_prod_code,
t.db_cust_po, i.db_delv_cod2, l.db_lot_desc, i.db_shpmt_no,
p.oe_po_line
order by lotNum
the problem is that if I dont use SELECT DISTINCT at beginning
the result is like
F , LOTQTY , PONUM , POLINENUM
DP8568.00,25 ,BVI10080 ,1
DP8568.00,25 ,BVI10080 ,2
DP8568.00,25 ,BVI10080 ,1
DP8568.00,25 ,BVI10080 ,1
DP8568.00,25 ,BVI10080 ,2
DP8568.00,25 ,BVI10080 ,1
DP8568.00,25 ,BVI10080 ,1
DP8568.00,25 ,BVI10080 ,2 //pleae note the QTY and POLINENUM
Then if Add SELECT DISTINCT, the result will be
F ,LOTQTY , PONUM , POLINENUM
DP8568.00,25 ,BVI10080,1
DP8568.00,25 ,BVI10080,2
but I change the NVL(l.db_waf_qty,'99999') lotQty, statement to NVL((SUM( l.db_waf_qty)),'99999') lotQty,
this will give me the result
F ,LOTQTY, PONUM , POLINENUM
DP8568.00,75 , BVI10080 ,2
DP8568.00,125 , BVI10080 ,1
Which I excepted the result as
F ,LOTQTY, PONUM , POLINENUM
DP8568.00,25 , BVI10080 ,2
DP8568.00,25 , BVI10080 ,1
And Advise??
Thanks a lot
Jon

Answer 1

based on the data set you given
SQL>
SQL> With t As
  2  (
  3  Select 'DP8568' c1 ,0.25 c2,'BVI10080' c3,1 c4 From dual Union All
  4  Select 'DP8568' ,0.25 ,'BVI10080' ,2           From dual Union All
  5  Select 'DP8568' ,0.25 ,'BVI10080' ,1           From dual Union All
  6  Select 'DP8568' ,0.25 ,'BVI10080' ,1           From dual Union All
  7  Select 'DP8568' ,0.25 ,'BVI10080' ,2           From dual Union All
  8  Select 'DP8568' ,0.25 ,'BVI10080' ,1           From dual Union All
  9  Select 'DP8568' ,0.25 ,'BVI10080' ,1           From dual Union All
10  Select 'DP8568' ,0.25 ,'BVI10080' ,2           From dual
11  )
12  Select c1,
13         sum(c2) lot_qty,
14         c3,
15         c4
16  From
17  (
18    Select c1, --Sum(c2) over (Partition By c1,c4 Order By c4)
19           row_number() over (Partition By c1,c4 Order By c4) rn,
20           c2,
21           c3,
22           c4
23    From t
24  ) Where rn = 1
25  Group By c1, c3, c4;
C1        LOT_QTY C3               C4
DP8568       0.25 BVI10080          2
DP8568       0.25 BVI10080          1
SQL>