skip null or 0 value while using row_number sql server - sql

Question

i am trying to get row_number from the data, but i want to skip the null or 0 value
DECLARE #ProcessId INT = 6013006
DECLARE #CommHeaderId int
SELECT #CommHeaderId = a.id
FROM EprocUltimate.dbo.commercial_header a
WHERE a.process_id = #ProcessId
SELECT b.rank_quotation, c.rank_nego,
CASE ISNULL(a.quotation_usd, 0) WHEN 0 THEN a.quotation_idr ELSE a.quotation_usd END As Quotation,
CASE ISNULL(a.nego_usd, 0) WHEN 0 THEN a.nego_idr ELSE a.nego_usd END As Nego
FROM EprocUltimate.dbo.commercial_vendor a
INNER JOIN
(
SELECT a.id, ROW_NUMBER() OVER(ORDER BY CASE quotation_usd WHEN 0 THEN quotation_idr ELSE quotation_usd END ASC) AS rank_quotation
FROM EprocUltimate.dbo.commercial_vendor a
WHERE a.commercial_header_id = #CommHeaderId AND a.commercial_admin_bid_evaluation_result = 'Pass'
) b ON a.id = b.id
INNER JOIN
(
SELECT a.id, ROW_NUMBER() OVER(ORDER BY CASE ISNULL(nego_usd, 0) WHEN 0 THEN nego_idr ELSE nego_usd END ASC) AS rank_nego
FROM EprocUltimate.dbo.commercial_vendor a
WHERE a.commercial_header_id = #CommHeaderId AND a.commercial_admin_bid_evaluation_result = 'Pass'
) c ON a.id = c.id
WHERE a.commercial_header_id = #CommHeaderId AND a.commercial_admin_bid_evaluation_result = 'Pass'
ORDER BY b.rank_quotation
heres the result
rank_quotation rank_nego, value1, value2
1 3 775460000.00 770000000.00
2 1 781036525.00 NULL
3 2 786250000.00 NULL
from this query what i want is to get row_numbering the rank_nego with having value first
so the result that i want to achive is
rank_quotation rank_nego, value1, value2
1 1 775460000.00 770000000.00
2 2 781036525.00 NULL
3 3 786250000.00 NULL

Answer 1

You can use a little workaround to have your NULL values as last records in your subquery with the ROW_NUMBER() OVER (ORDER BY ...) as rank_nego
(
SELECT a.id, ROW_NUMBER() OVER(ORDER BY
-- This statement will first sort records having nego_usd and nego_idr as NULL/0 at the end of the list
CASE WHEN ISNULL(nego_usd, 0) = 0 AND ISNULL(nego_idr, 0) = 0 THEN 1 ELSE 0 END ASC,
-- and then sort with the real values
CASE ISNULL(nego_usd, 0) WHEN 0 THEN nego_idr ELSE nego_usd END ASC
) AS rank_nego
FROM EprocUltimate.dbo.commercial_vendor a
WHERE a.commercial_header_id = #CommHeaderId AND a.commercial_admin_bid_evaluation_result = 'Pass'
) c ON a.id = c.id