如何解决使用row_number SQL Server时跳过null或0值
我正在尝试从数据中获取row_number,但是我想跳过null或0值
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
结果在这里
rank_quotation rank_nego,value1,value2
1 3 775460000.00 770000000.00
2 1 781036525.00 NULL
3 2 786250000.00 NULL
从此查询中,我想要得到的是具有优先值的row_numbering rank_nego
所以我想要达到的结果是
rank_quotation rank_nego,value2
1 1 775460000.00 770000000.00
2 2 781036525.00 NULL
3 3 786250000.00 NULL
解决方法
您可以使用一些变通方法来使NULL值作为带有ROW_NUMBER() OVER (ORDER BY ...) as rank_nego
的子查询中的最后一条记录
(
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
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