如何在別名列上使用聚合函數SUM？

Question

發票編號，訂單編號和dueDate顯示爲重複項。

TotalPrice是一個別名（這應該是單價，總價是錯誤的，所以假設它單價不總價）

TotalShippingPrice顯示是用InvoiceID /採購單號碼相關聯的運費價格，爲每一位invoiceID/PONumber將會有單獨的運費價格。同樣的規則適用於跟蹤號碼。

年代表這張發票的發送年份（不用擔心）。

isTaxPaid代表稅是否在單價繳納或者未（不擔心）

我的要求是：

我需要刪除invoiceID複製和有單位的總和每張發票的價格，所以每個發票ID/PONumber只能有一個單價記錄。

例如：

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

所以我的問題是，無論到期日 - 368（92 + 276） ：

由於「UnitPrice」列是一個別名，我無法得到它的總和！我該怎麼辦？ 我想有psedu代碼或如何做到這一點的想法...

---

在你想看到我的查詢情況下，這（警告它看起來可怕的，非常寫的，需要以調整後的）：

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

你可以放置另一個查詢周圍您的原始產生的總和：

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

只是它一槍，但如果你把整個select語句到FROM子句然後你可以跨別名總結：

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).