我應該如何在SQL過程中創建一個列修復程序和其他可重複的列？

Question

有一個方案和不同的投標人對它，所以情景是，如果用戶發送SchemeID到程序那麼它應該返回SchemeName，EstimatedCost（一次）和所有投標人對單一計劃即BidderName，BidPrice，SchemeEstimatedCost。 ..在這種格式

SchemeName EstimatedCost BidderName BidPrice 
    Scheme 1  13000   John  12000   
           Aamir  10000 
           Shumail  9000 
           Michael  8090 

請參閱我通過SchemeID搜索數據，它應該返回此格式的詳細信息。

我嘗試：

ALTER PROCEDURE [dbo].[SelectBidsByBidID] 

    @fk_Schemes_Bids_SchemeID int 

AS 
BEGIN 

     Select Schemes.SchemeName, Schemes.SchemeCost as SchemeEstimatedCost, 
       Bids.BidBidderName, Bids.BidPrice 
     From Bids 
     Inner Join Schemes 
     ON Schemes.pk_Schemes_SchemeID= Bids.fk_Schemes_Bids_SchemeID 
     Where Bids.fk_Schemes_Bids_SchemeID= 3 

END 

但重複SchemeName和估計費用。

Answer 1

這應該做的伎倆：

ALTER PROCEDURE [dbo].[SelectBidsByBidID] 

@fk_Schemes_Bids_SchemeID int 

AS 
BEGIN 

    Select case when ROW_NUMBER() OVER (Order by BidPrice desc) = 1 then Schemes.SchemeName else '' end as SchemeName, case when ROW_NUMBER() OVER (Order by BidPrice desc) = 1 then Schemes.SchemeCost else '' end as SchemeEstimatedCost, 
      Bids.BidBidderName, Bids.BidPrice 
    From Bids 
    Inner Join Schemes 
    ON Schemes.pk_Schemes_SchemeID= Bids.fk_Schemes_Bids_SchemeID 
    Where Bids.fk_Schemes_Bids_SchemeID= 3 
Order by BidPrice desc 
END 

然而，如前所述，這不應該在查詢完成，但在報表查看器/發電機。

Answer 2

ALTER PROCEDURE [dbo].[SelectBidsByBidID] 

    @fk_Schemes_Bids_SchemeID int 

AS 
BEGIN 
;with cte 
as 
(
     Select Schemes.SchemeName, Schemes.SchemeCost as SchemeEstimatedCost, 
       Bids.BidBidderName, Bids.BidPrice,row_number() over(partition by schemename,SchemeCost order by bidprice desc) as rn 
     From Bids 
     Inner Join Schemes 
     ON Schemes.pk_Schemes_SchemeID= Bids.fk_Schemes_Bids_SchemeID 
     Where Bids.fk_Schemes_Bids_SchemeID= 3 
) 
select case when rn=1 then Schemes.SchemeName else '' end as SchemeName, case when rn=1 then cast(Schemes.SchemeCost as varchar(max)) else '' end as SchemeEstimatedCost, 
       Bids.BidBidderName, Bids.BidPrice 
from cte 

END 

Answer 3

這應該在報告工具/任何其他前端工具中完成。如果你沒有選擇，試試這個

ALTER PROCEDURE [dbo].[SelectBidsByBidID] @fk_Schemes_Bids_SchemeID INT 
AS 
BEGIN 
    SELECT CASE 
      WHEN sno = 1 
       THEN SchemeName 
      ELSE '' 
      END AS SchemeName 
     ,CASE 
      WHEN sno = 1 
       THEN SchemeEstimatedCost 
      ELSE '' 
      END AS SchemeEstimatedCost 
     ,BidBidderName 
     ,BidPrice 
    FROM (
     SELECT row_number() OVER (
       PARTITION BY Schemes.SchemeName 
       ,Schemes.SchemeCost ORDER BY Bids.BidPrice DESC 
       ) AS sno 
      ,Schemes.SchemeName 
      ,Schemes.SchemeCost AS SchemeEstimatedCost 
      ,Bids.BidBidderName 
      ,Bids.BidPrice 
     FROM Bids 
     INNER JOIN Schemes ON Schemes.pk_Schemes_SchemeID = Bids.fk_Schemes_Bids_SchemeID 
     WHERE Bids.fk_Schemes_Bids_SchemeID = 3 
     ) AS t 
END