SSRS IIF語法

Question

在我的查詢設計器中，我嘗試使用下面的查詢：

SELECT  Site, LegalConfigNumber, COUNT(*) AS Total 
FROM   EPSInfoLive 
iif(@LegalConfigNum = 0, 
WHERE  (InputDate >= @rundate) AND (InputDate <= DATEADD(day, 1, @rundate)), 
WHERE  (InputDate >= @rundate) AND (InputDate <= DATEADD(day, 1, @rundate)) AND LegalConfigNumber = @LegalConfigNum) 
GROUP BY LegalConfigNumber, Site 
ORDER BY Site, LegalConfigNumber 

當我嘗試測試它，我得到關於通過@LegalConfigNum語法不正確的消息。 我似乎無法找到那將是什麼。

Answer 1

SSRS查詢需要用SQL編寫。您正在使用'@iif'來混合使用SQL和Visual Basic。 SQL支持CASE語句而不是IIF。但是你不需要這些來展示你的內容。以下聲明應該在邏輯上等效：

SELECT 
    Site, 
    LegalConfigNumber, 
    COUNT(*) AS Total 
FROM 
    EPSInfoLive 
WHERE 
    (InputDate >= @rundate) AND (InputDate <= DATEADD(day, 1, @rundate)) 
    AND (LegalConfigNumber = @LegalConfigNum OR @LegalConfigNum = 0) 
GROUP BY LegalConfigNumber, Site 
ORDER BY Site, LegalConfigNumber