where子句中的用例語句

Question

我嘗試在sql server的where子句中使用case語句並獲取錯誤消息。

WHERE (PRCA.EDLType = 'E') 
AND 
(
NOT 
(
    PRCA.EDLCode IN 
    (
    SELECT EarnCode 
    FROM dbo.udECforUnionRpt 
    WHERE (EDL = 'E') 
) 
) 
) 
AND (PRCM.udMasterCraft IS NOT NULL) 
AND (PRCA.PREndDate BETWEEN @BegPREndDate AND @EndPREndDate) 
AND PRCM.udMasterCraft BETWEEN @BegMasterCraft AND @EndMasterCraft 
AND PRCA.Class BETWEEN @BegClass AND @EndClass 
AND 
(
    CASE WHEN @ExcludePREAPR='Y' THEN UPPER(PRCA.Class) not like upper('%PREAPR%') 
    else PRCA.Class 
) 
END 
) 
ORDER BY PRCA.PRCo 

也許是因爲PRCA.Class有兩個條件？或者我只是不寫CASE聲明權利。

謝謝

Answer 1

轉儲case語句。使用這個：

AND (UPPER(PRCA.CLASS) not like '%PREAPR%' OR @ExcludePREAPR != 'Y')