Question

我遇到了一个小问题，我不知道如何进行一轮比赛，希望有人可以提供帮助。我需要做的是在多个记录上运行select并检索p.CustID的最后两个记录。当输入一个p.CustID代码工作正常但我需要删除where子句，我需要它来检索每个p.CustID的最后两个记录（总共大约14,000条记录）当我删除where子句时它只返回两个记录总共是我的语句[DB_User]中的前两个记录。[dbo]。[P1ASellers]。我尝试在CTE中使用它，但仍然无法让它返回我在下面使用的代码： SELECT TOP (2) cbc.StorePartnerCustConfigID, p.CustID, cbc.ConfigID, cbc.EffectiveDate, ROW_NUMBER() OVER (ORDER BY cbc.StorePartnerID DESC) AS RowNum FROM [DB_User].[dbo].[P1ASellers] p INNER JOIN [ACA].dbo.tblConfig_StorePartnerConfig BP ON BP.EntityID=CAST(p.CustID AS VARCHAR) INNER JOIN [ACA].dbo.tblConfig_StorePartner CBP ON CBP.StorePartnerID=BP.StorePartnerID INNER JOIN [ACA].dbo.tblConfig_StorePartnerCustConfig CBC ON CBP.StorePartnerID=CBC.StorePartnerID AND cbc.ProcessConfigID IN (1,2,3,4) INNER JOIN [ACA].dbo.tblConfig_StorePartnerCustConfig CBC2 ON CBC.StorePartnerID=CBC2.StorePartnerID AND cbc2.ConfigID IN (1,2,3,4) where p.CustID=55555 <-need to remove the where ORDER BY cbc.StorePartnerID DESC

查询结果 StorePartnerCustConfigID CustID ConfigID EffectiveDate RowNum 15031 55555 4 2015-06-25 1 15032 55555 1 2015-06-25 2

删除where子句后我实际得到的内容： StorePartnerCustConfigID CustID ConfigID EffectiveDate RowNum 68995 89566 2 2011-03-02 1 68996 89566 1 2011-03-02 2

删除where子句后我的期望： StorePartnerCustConfigID CustID ConfigID EffectiveDate RowNum 15031 55555 4 2015-06-25 1 15032 55555 1 2015-06-25 2 64584 65486 2 2013-04-16 1 64585 65486 1 2013-04-16 2 等等.......

非常感谢任何输入，谢谢！

Answer 1

我认为您正在寻找每位客户的前2名记录，您可以通过以下方式获取：

SELECT TOP (2) with ties
    cbc.StorePartnerCustConfigID,
    p.CustID,
    cbc.ConfigID,
    cbc.EffectiveDate,
    ROW_NUMBER() OVER (ORDER BY cbc.StorePartnerID DESC) AS RowNum
FROM [DB_User].[dbo].[P1ASellers] p
INNER JOIN [ACA].dbo.tblConfig_StorePartnerConfig BP
    ON BP.EntityID=CAST(p.CustID AS VARCHAR)
INNER JOIN [ACA].dbo.tblConfig_StorePartner CBP
    ON CBP.StorePartnerID=BP.StorePartnerID
INNER JOIN [ACA].dbo.tblConfig_StorePartnerCustConfig CBC
    ON CBP.StorePartnerID=CBC.StorePartnerID
    AND cbc.ProcessConfigID IN (1,2,3,4)
INNER JOIN [ACA].dbo.tblConfig_StorePartnerCustConfig CBC2
    ON CBC.StorePartnerID=CBC2.StorePartnerID
    AND cbc2.ConfigID IN (1,2,3,4) 
ORDER (row_number() over(partition by p.CustId Order BY cbc.StorePartnerID DESC-1)/2 +1 )

来自多个记录帮助的最后两行

1 个答案: