Oracle Query -Lead/over

There is already a date range  in the query

        AND d.thisdate BETWEEN deff.thisdate AND dexp.thisdate

i.e. between a "date_effective" and  a "date_expiration"

What happens if the new query date range isn't compatible with the existing date range?
Could the "split" change during the new date range, and if so how do you want to handle that?

Do you need to alter the where clause to something like this perhaps?

            WHERE ( 
                       d.THISDATE >= to_date('2014-08-12','yyyy-mm-dd') 
                   AND d.THISDATE  < to_date('2014-09-12','yyyy-mm-dd') 
                  )
                  AND to_date('2014-08-12','yyyy-mm-dd') BETWEEN deff.thisdate AND dexp.thisdate

                  AND p.NSN_CODE = '2610-01-214-1344'

Select allOpen in new window

Personally I don't think I can offer much detail without some "sample data" (per table) and the "expected result" (based on the sample data).

Please also note I'm not sure why you use a string like '12-AUG-14'  as a date.
I always use to_date() or to_timestamp() depending on the data type in the relevant columns.

I have attached the current resultset,
the query I have run is

SELECT nsn,thisdate,  
vendor1_code, vendor1_name, qtysum_1, DELIVERED_QTY_1, split_1,
vendor2_code, vendor2_name, qtysum_2, DELIVERED_QTY_2, split_2
FROM 
(SELECT nsn_code AS nsn, vendor_code AS vendor1_code, vendor_name AS vendor1_name, thisdate,
qtysum AS qtysum_1, DELIVERED_QTY AS DELIVERED_QTY_1,
split AS split_1, LEAD(vendor_code) OVER (ORDER BY split) AS vendor2_code,
               LEAD(vendor_name) OVER (ORDER BY split) AS vendor2_name,
               LEAD(qtysum) OVER (ORDER BY split)      AS qtysum_2,
              LEAD(DELIVERED_QTY)OVER (ORDER BY split) AS DELIVERED_QTY_2,
               LEAD(split) OVER (ORDER BY split)       AS split_2
               ,ROW_NUMBER() OVER (ORDER BY split)      rn
          FROM (  SELECT p.NSN_CODE,
                        dv.vendor_code,
                         dv.vendor_name,d.thisdate,
                         SUM(po.quantity) qtysum,
                         sum(po.QTYDELIVERED) as DELIVERED_QTY,
                         rfp.vendor_share_percent AS split
                    FROM fact_po_lines po
                         INNER JOIN dim_product p
                             ON po.dim_product_id = p.dim_product_id 
                         INNER JOIN dim_date d ON po.ORDERED_DATE_ID = d.dim_date_id
                         INNER JOIN fact_pa_item pai
                             ON     po.dim_product_id = pai.dim_product_id
                                AND po.dim_vendor_id = pai.dim_vendor_id
                         INNER JOIN dim_vendor dv ON po.dim_vendor_id = dv.dim_vendor_id
                         INNER JOIN dim_date deff ON pai.dim_date_effective_id = deff.dim_date_id
                         INNER JOIN dim_date dexp ON pai.dim_date_expiration_id = dexp.dim_date_id
                         INNER JOIN dim_product p ON pai.dim_product_id = p.dim_product_id
                         INNER JOIN fact_rfp_product rfp
                             ON     pai.source_rfp_id = rfp.source_rfp_id
                                AND pai.dim_product_id = rfp.dim_product_id
                                AND pai.dim_date_effective_id = rfp.dim_date_create_id
                   WHERE  
                   d.THISDATE ='12-AUG-14'
                   AND d.thisdate BETWEEN deff.thisdate AND dexp.thisdate
                         and p.NSN_CODE = '2610-01-194-6220'--'2610-01-194-6220'
                GROUP BY p.nsn_code,
                         dv.vendor_code,
                         dv.vendor_name, 
                         d.thisdate,
                         rfp.vendor_share_percent) t)
                        
 WHERE rn = 1
 order by thisdate;

Select allOpen in new window

The export data attached is something Iam expecting .
The query above returns each of those lines for a single date entry
 d.THISDATE ='12-AUG-14 pr '07-AUG-14'.
How to return the same dataset by passing
 d.THISDATE BETWEEN '01-AUG-14' AND '13-AUG-14'  
That way I dont have to run the query each time for a single date,I just have to run it for a date range.
Thanks for your time
export.xlsx

I was able to get to the solution