將訪問查詢轉換爲SQL Server存儲過程

-1

我試圖將MS Access查詢轉換爲SQL Sever存儲過程，但是存在兩個無關表中的求和和分組字段的問題。它可以在MS Access中執行，但我無法在SQL Server存儲過程中複製它。將訪問查詢轉換爲SQL Server存儲過程

這裏的MS Access查詢我想轉換 -

MS Access查詢

SELECT Tbl_Actuals.PS 
, [tbl_CalendarYear.Current_Year]-1 AS [Previous Year] 
, tbl_CalendarYear.Current_Year 
, Tbl_Actuals.Source 
, Tbl_Actuals.Program_Code 
, IIf([Source]="Leasehold",Sum(IIf([Actuals_Year]<>[Current_Year], ([Amount]),Null)),Null) AS PrevYearAmount 
FROM Tbl_Actuals, tbl_CalendarYear 
GROUP BY Tbl_Actuals.PS 
, [tbl_CalendarYear.Current_Year]-1 
, tbl_CalendarYear.Current_Year 
, Tbl_Actuals.Source 
, Tbl_Actuals.Program_Code 
ORDER BY Tbl_Actuals.Program_Code;

下面是上面的SQL Server存儲過程的轉換。

declare @CurrentYear float 
declare @PrevYear float 

SET @CurrentYear=(SELECT [Current_Year] FROM tbl_CalendarYear) 
SET @PrevYear= (SELECT [Current_Year] -1 FROM tbl_CalendarYear) 

SELECT PS 
, @CurrentYear as CurrentYear 
, @PrevYear as PreviousYear 
, A.Source 
, A.Program_Code 
, CASE WHEN (A.Source='Leasehold') THEN SUM(A.Amount) -- HOW TO DO SUM ONLY IF  [A.Actuals_Year]=[Current_Year] similar to Access Query END AS PrevYearAmount 
FROM Tbl_Actuals A 
GROUP BY PS 
, Source 
, Program_Code -- HOW TO GROUP BY [Current_Year]-1, tbl_CalendarYear.Current_Year similar to Access Query 
ORDER BY Program_Code;

這裏是我的問題，與SQL轉換 -

HOW TO DO SUM ONLY IF [A.Actuals_Year]=[Current_Year]類似於Access查詢
HOW TO GROUP BY [Current_Year]-1, tbl_CalendarYear.Current_Year類似

請訪問查詢建議。謝謝。

來源

2012-06-23 San

爲什麼你將'Year'作爲'FLOAT'存儲？你能顯示樣本數據和期望的結果嗎？我不確定我明白'GROUP BY SomeYear-1'的含義... –

當你已經用[Current_Year]分組時，爲什麼你需要通過'[Current_Year] -1'進行分組？ –

這似乎有點像一個奇怪的數據庫設計的，但是這可能會給你你需要的東西：

DECLARE @CurrentYear float 
DECLARE @PrevYear float 

SELECT @CurrentYear = MAX([Current_Year]) FROM tbl_CalendarYear 
SET @PrevYear = @CurrentYear - 1 

SELECT [PS] 
    ,@CurrentYear as CurrentYear 
    ,@PrevYear as PreviousYear 
    ,[Source] 
    ,[Program_Code] 
    ,SUM(CASE WHEN [Source]='Leasehold' AND [Actuals_Year] <> @CurrentYear THEN 
     [Amount] 
     ELSE 
      0 
     END) PrevYearAmount 
FROM Tbl_Actuals 
GROUP BY [PS] 
    ,[Source] 
    ,[Program_Code] 
ORDER BY [Program_Code];

關於問題（2），因爲@CurrentYear和@PrevYear是變量，你不需要由他們組成。

我還注意到，您的訪問查詢正在求和Amount其中[Actuals_Year]<>[Current_Year]但在你的問題（1）你說它應該總結在哪裏[Actuals_Year]=[Current_Year]。我的答案在Access版本之後。

來源

2012-06-23 18:49:16

將訪問查詢轉換爲SQL Server存儲過程

回答

相關問題