Access 2007，OVER子句解決方法 - 缺少操作員錯誤

Question

我的查詢旨在將一個名爲「WeightFactor」的附加字段添加到表的末尾。我的SQL代碼如下。當我嘗試運行時，我收到「缺少操作員錯誤」。在前面的問題中，我可以看到OVER（）在語法上是正確的。自從我使用rowprice/totalprice以來，「WeightFactor」字段應該是100％的一小部分。當我刪除OVER子句時，錯誤消失，但結果僅顯示每行100％，而不是每行100％的正確百分比。

我被告知OVER在Access中不受支持，所以想知道這是否屬實，如果有的話是否有任何人知道的解決方法？

SELECT [2-C: Avg Prices by Customer Number Query].[Part Number], 
    [2-C: Avg Prices by Customer Number Query].[Customer Name], 
    [2-C: Avg Prices by Customer Number Query].[Customer Number], 
    [2-C: Avg Prices by Customer Number Query].SumOfQuantity, 
    [2-C: Avg Prices by Customer Number Query].TotalCost, 
    [2-C: Avg Prices by Customer Number Query].TotalPrice, 
    [2-C: Avg Prices by Customer Number Query].[Gross Margin], 
    [TotalPrice]/SUM([TotalPrice]) OVER() AS WeightFactor 
FROM [2-C: Avg Prices by Customer Number Query] 

Answer 1

爲什麼不創建第二個查詢來計算所有項目的總數？

'TotalQuery 
SELECT SUM([2-C: Avg Prices by Customer Number Query].TotalPrice) AS TotalPriceOver 
FROM [2-C: Avg Prices by Customer Number Query]; 

然後你可以使用這個在您的原始查詢：

'OriginalQuery 
SELECT [2-C: Avg Prices by Customer Number Query].TotalPrice, 
[TotalPrice]/[TotalPriceOver] AS WeightFactor 
FROM [2-C: Avg Prices by Customer Number Query], TotalQuery;