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我用我的模式和一些测试数据创建了一个SQLFiddle（感谢Amadan！）。由于某种原因，计算的列在 SQLFiddle 中不起作用，但它们在我的 MYSQL Workbench 中运行良好。假设它们正常工作。

我的查询已经做到了这一点：

SELECT DISTINCT o.orderid,i.invoiceid,i.subinvoicenumber,stockingorderid AS oistockingorderid,

IF(stockingorderid > 0, 0, po.purchaseorderid) AS purchaseorderid,subponumber,po.paidvia,dropshipfee,i.taxstate,

COALESCE(
    (SELECT mfrname 
        FROM cs_products.tblstockingorders so 
        WHERE so.stockingorderid=oistockingorderid),
    po.mfrname)
AS source,

(i.shipping + i.surcharge + 
    (SELECT SUM(additionalshipping * quantity) AS additionalshipping 
        FROM cs_products.tblorderitems 
        WHERE invoiceid=i.invoiceid)) 
AS shipping,

CAST(IF(o.paymentmethod=2, CONCAT('Check: ', i.checknumber),o.paymentmethod) AS CHAR) AS invoicepaidvia,

COALESCE(
    (SELECT (SUM(cost * quantity) * IF(so.mfrdiscount > 0, 1 - so.mfrdiscount, 1)) AS cost 
        FROM cs_products.tblorderitems oi 
        JOIN cs_products.tblallocations a ON oi.orderitemid=a.orderitemid 
        JOIN cs_products.tblstockingorders so ON a.stockingorderid=so.stockingorderid
        WHERE a.stockingorderid=oistockingorderid),
    (SELECT (SUM(cost * quantity) * IF(po.mfrdiscount > 0, 1 - po.mfrdiscount, 1)) AS cost 
        FROM cs_products.tblorderitems 
        WHERE purchaseorderid=po.purchaseorderid)) 
    AS grosscost,

(SELECT SUM(price * quantity)
    FROM cs_products.tblorderitems 
    WHERE invoiceid=i.invoiceid) 
AS grossprice

FROM cs_products.tblorders o 
    JOIN cs_products.tblinvoices i ON o.orderid=i.orderid
    #ordertype of 0 means the order came from the website
    LEFT JOIN cs_products.tblpurchaseorders po ON o.orderid=po.orderid AND IF(o.ordertype<>0, subinvoicenumber=subponumber, subinvoicenumber=0 AND subponumber>=0)
    LEFT JOIN cs_products.tblallocations a ON a.orderid=o.orderid

这让我到达那里的 95%。正如您所看到的，对于OrderId1287，它显示了两条带有stockingorderids 的记录，而没有一条带有 a 的记录，purchaseorderid即使采购订单已归属于 1287。我期望看到的缺失行类似于：

1287|276|0|NULL|194|0||0|0|'Quality Fabricators'|357.53|0|781.43|11917.70

同样，不要担心计算列，我只希望记录出现。我觉得我错过了最小的东西，但我不知道它是什么。

谢谢！

更新计算列不起作用的原因是因为使用了旧的订单项目数据。有机会我会更新的。

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1 回答 1

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我建议您使用NULL（而不是0）分别表示PO 和 SO 记录的stockingorderidand ：purchaseorderid

ALTER TABLE tblorderitems MODIFY purchaseorderid int(10) unsigned NULL;
UPDATE tblorderitems SET purchaseorderid = NULL WHERE purchaseorderid = 0;

然后，您可以将查询与UNION提供一组所有 ( order , stockingorder ) 和 ( order , purchaseorder ) 对的子查询连接：

  SELECT orderid, stockingorderid, NULL AS purchaseorderid FROM tblallocations
UNION ALL
  SELECT orderid, NULL AS stockingorderid, purchaseorderid FROM tblpurchaseorders

我认为您的查询可以简化为：

SELECT   orderid, invoiceid, subinvoicenumber, purchaseorderid, subponumber,
         tblpurchaseorders.paidvia, dropshipfee, tblinvoices.taxstate,
         invoicedate, datepaid, stockingorderid,

         COALESCE(tblstockingorders.mfrname, tblpurchaseorders.mfrname) AS source,

         shipping + surcharge + SUM(quantity * additionalshipping) AS shipping,

         CASE paymentmethod
           WHEN 2 THEN CONCAT('Check: ', checknumber)
           ELSE CAST(paymentmethod AS CHAR)
         END AS InvoicePaidVia,

         (1-COALESCE(tblstockingorders.mfrdiscount, tblpurchaseorders.mfrdiscount))
           * SUM(quantity * cost) AS grosscost,

         SUM(quantity * price) AS grossprice

FROM     tblorders
  JOIN   tblinvoices          USING (orderid)
  JOIN (
          SELECT orderid, orderitemid, stockingorderid, NULL AS purchaseorderid
          FROM   tblallocations
        UNION ALL
          SELECT orderid, NULL, NULL, purchaseorderid
          FROM   tblpurchaseorders
       ) AS t                 USING (orderid)
  LEFT JOIN tblpurchaseorders USING (orderid,purchaseorderid)
  LEFT JOIN tblstockingorders USING (stockingorderid)
  LEFT JOIN tblorderitems     USING (orderid,orderitemid,invoiceid,purchaseorderid)
WHERE    ordertype = 0 OR subinvoicenumber = subponumber
GROUP BY orderid, invoiceid, subinvoicenumber, purchaseorderid, subponumber,
         tblpurchaseorders.paidvia, dropshipfee, tblinvoices.taxstate, datepaid,
         invoicedate, stockingorderid, shipping, surcharge, paymentmethod,
         tblstockingorders.mfrname, tblpurchaseorders.mfrname, checknumber,
         tblstockingorders.mfrdiscount, tblpurchaseorders.mfrdiscount

在sqlfiddle上查看它，删除了对invoicedate列的引用（因为它不存在于您的示例架构中）。

于 2012-05-22T18:09:49.863 回答