如何在别名列上使用聚合函数SUM？

Question

发票编号，订单编号和dueDate显示为重复项。

TotalPrice是一个别名（这应该是单价，总价是错误的，所以假设它单价不总价）

TotalShippingPrice显示是用InvoiceID /采购单号码相关联的运费价格，为每一位invoiceID/PONumber将会有单独的运费价格。同样的规则适用于跟踪号码。

年代表这张发票的发送年份（不用担心）。

isTaxPaid代表税是否在单价缴纳或者未（不担心）

我的要求是：

我需要删除invoiceID复制和有单位的总和每张发票的价格，所以每个发票ID/PONumber只能有一个单价记录。

例如：

30463 - 903315 - - - - - （trackingNumber） - - 2010 - 0（纳税）

所以我的问题是，无论到期日 - 368（92 + 276） ：

由于“UnitPrice”列是一个别名，我无法得到它的总和！我该怎么办？ 我想有psedu代码或如何做到这一点的想法...

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在你想看到我的查询情况下，这（警告它看起来可怕的，非常写的，需要以调整后的）：

SELECT  CustomerInvoice.cuInvoiceID, CustomerQuote.PONumber, CustomerInvoice.dueDate, 
      CASE 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(((CustomerQuoteProducts.unitPrice * 1.15) * 1.15) * CustomerQuoteProducts.qty) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15) * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty) * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(CustomerQuoteProducts.unitPrice * 1.15) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15) * CustomerQuoteProducts.qty) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(CustomerQuoteProducts.unitPrice * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(((CustomerQuoteProducts.unitPrice * 1.15)) * CustomerQuoteProducts.qty) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15)) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty)) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(CustomerQuoteProducts.unitPrice) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty)) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(CustomerQuoteProducts.unitPrice) 
      END AS "TotalPrice", 
      CASE WHEN row_number() OVER (partition BY CustomerInvoice.cuInvoiceId ORDER BY newid()) = 1 
       THEN (
          CASE 
           WHEN CustomerShipping.isTaxPaid > 0 THEN SUM(CustomerShipping.shippingPrice * 1.15) 
           WHEN CustomerShipping.isTaxPaid <= 0 THEN SUM(CustomerShipping.shippingPrice) 
          END 
        ) 
      END AS "TotalShippingPrice", 
      CASE WHEN row_number() OVER (partition BY CustomerInvoice.cuInvoiceId ORDER BY newid()) = 1 
       THEN CustomerShipping.trackingNumber 
      END AS "trackingNumber", 
      DATEPART(year, CustomerInvDetail.sentDate) AS Year, CustomerQuoteProducts.isTaxPaid 
FROM   CustomerInvoice INNER JOIN 
         CustomerInvDetail ON CustomerInvoice.cuInvoiceID = CustomerInvDetail.cuInvoiceID INNER JOIN 
         CustomerQuote ON CustomerQuote.customerQuoteID = CustomerInvoice.customerQuoteID INNER JOIN 
         CustomerQuoteProducts ON CustomerQuoteProducts.customerQuoteID = CustomerQuote.customerQuoteID INNER JOIN 
         CustomerShipping ON CustomerShipping.customerQuoteID = CustomerInvoice.customerQuoteID INNER JOIN 
         Customer ON Customer.customerID = CustomerQuote.customerID 
WHERE  (DATEPART(year, CustomerInvDetail.sentDate) BETWEEN 1999 AND 2999) AND (Customer.customerID = 500) 
GROUP BY CustomerInvDetail.sentDate, CustomerInvoice.cuInvoiceID, CustomerShipping.shippingPrice, CustomerInvoice.dueDate, CustomerQuote.PONumber, CustomerQuoteProducts.qty, CustomerQuoteProducts.ProductID, CustomerQuoteProducts.unitPrice, CustomerQuoteProducts.isTaxPaid, CustomerShipping.isTaxPaid, CustomerShipping.trackingNumber 

Answer 1

你可以放置另一个查询周围您的原始产生的总和：

SELECT x.cuInvoiceID, x.PONumber, x.DueDate, sum(x.TotalPrice), x.trackingNumber, x.Year, x.isTaxPaid 
    FROM (<YourOriginalQuery>) x 
    GROUP BY x.cuInvoiceID, x.PONumber, x.DueDate, x.trackingNumber, x.Year, x.isTaxPaid 

Answer 2

只是它一枪，但如果你把整个select语句到FROM子句然后你可以跨别名总结：

SELECT (Going to have to include the fields here and group by them), SUM(TotalPrice) FROM 
SELECT CustomerInvoice.cuInvoiceID, CustomerQuote.PONumber, CustomerInvoice.dueDate, 
      CASE 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(((CustomerQuoteProducts.unitPrice * 1.15) * 1.15) * CustomerQuoteProducts.qty) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15) * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty) * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(CustomerQuoteProducts.unitPrice * 1.15) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15) * CustomerQuoteProducts.qty) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid > 0 THEN SUM(CustomerQuoteProducts.unitPrice * 1.15) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(((CustomerQuoteProducts.unitPrice * 1.15)) * CustomerQuoteProducts.qty) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 1 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * 1.15)) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty)) 
       WHEN (SELECT isTaxPaid FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(CustomerQuoteProducts.unitPrice) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty > 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM((CustomerQuoteProducts.unitPrice * CustomerQuoteProducts.qty)) 
       WHEN (SELECT Count(isTaxPaid) FROM SupplierQuoteProducts WHERE productID = CustomerQuoteProducts.ProductID) = 0 AND CustomerQuoteProducts.qty <= 0 AND CustomerQuoteProducts.isTaxPaid <= 0 THEN SUM(CustomerQuoteProducts.unitPrice) 
      END AS "TotalPrice", 
      CASE WHEN row_number() OVER (partition BY CustomerInvoice.cuInvoiceId ORDER BY newid()) = 1 
       THEN (
          CASE 
           WHEN CustomerShipping.isTaxPaid > 0 THEN SUM(CustomerShipping.shippingPrice * 1.15) 
           WHEN CustomerShipping.isTaxPaid <= 0 THEN SUM(CustomerShipping.shippingPrice) 
          END 
        ) 
      END AS "TotalShippingPrice", 
      CASE WHEN row_number() OVER (partition BY CustomerInvoice.cuInvoiceId ORDER BY newid()) = 1 
       THEN CustomerShipping.trackingNumber 
      END AS "trackingNumber", 
      DATEPART(year, CustomerInvDetail.sentDate) AS Year, CustomerQuoteProducts.isTaxPaid 
FROM   CustomerInvoice INNER JOIN 
         CustomerInvDetail ON CustomerInvoice.cuInvoiceID = CustomerInvDetail.cuInvoiceID INNER JOIN 
         CustomerQuote ON CustomerQuote.customerQuoteID = CustomerInvoice.customerQuoteID INNER JOIN 
         CustomerQuoteProducts ON CustomerQuoteProducts.customerQuoteID = CustomerQuote.customerQuoteID INNER JOIN 
         CustomerShipping ON CustomerShipping.customerQuoteID = CustomerInvoice.customerQuoteID INNER JOIN 
         Customer ON Customer.customerID = CustomerQuote.customerID 
WHERE  (DATEPART(year, CustomerInvDetail.sentDate) BETWEEN 1999 AND 2999) AND (Customer.customerID = 500) 
GROUP BY CustomerInvDetail.sentDate, CustomerInvoice.cuInvoiceID, CustomerShipping.shippingPrice, CustomerInvoice.dueDate, CustomerQuote.PONumber, CustomerQuoteProducts.qty, CustomerQuoteProducts.ProductID, CustomerQuoteProducts.unitPrice, CustomerQuoteProducts.isTaxPaid, CustomerShipping.isTaxPaid, CustomerShipping.trackingNumber 

GROUP BY (all fields in the select except total price).