如何根據通過特定變量傳遞的值在我的存儲過程中編寫If語句？

我有一個需要修改的存儲過程。有4個可能的值可以通過變量@Company傳遞。該SQL看起來是這樣的....如何根據通過特定變量傳遞的值在我的存儲過程中編寫If語句？

-- Create #House table 
CREATE TABLE #Houses 
(
    iHouse_ID  int, 
    cName   varchar(50), 
    cNumber   varchar(10), 
    cPhoneNumber1 varchar(25), 
    cAddressLine1 varchar(50), 
    cCity   varchar(30), 
    cStateCode  varchar(2), 
    cZipCode  varchar(10), 
    iUnitsAvailable int, 
    iRegOpsNumber int, 
    cOpsName  varchar(50), 
    iRegionID  int, 
    cRegionName  varchar(50) 
) 

INSERT INTO #Houses (iHouse_ID, cName, cNumber, cPhoneNumber1, cAddressLine1, cCity, CStateCode, cZipCode, iUnitsAvailable, iRegOpsNumber, cOpsName, iRegionID, cRegionName) 
    SELECT 
     h2.iHouse_ID, h.cName, h.cNumber, h.cPhoneNumber1, 
     h.cAddressLine1, h.cCity, h.CStateCode, h.cZipCode, 
     h.iUnitsAvailable, r.RegOpsNumber, r.opsname, 
     r.iRegion_ID, r.regionname 
    FROM 
     rw.fn_GetScopeHouses (@Scope, @dtReport, NULL, NULL, 0) h2 
    JOIN  
     House h ON h.iHouse_ID = h2.iHouse_ID 
       AND h.cCompanyID = @CompanyID 
    JOIN  
     rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID

現在，我必須作出修改是如果@CompanyID傳遞的變量是「0000」，那麼我需要在添加和h2.ihouse_ID沒有。是.so的SQL成爲...

FROM 
    rw.fn_GetScopeHouses (@Scope, @dtReport, NULL, NULL, 0) h2 
JOIN  
    House h ON h.iHouse_ID = h2.iHouse_ID 
      AND h.cCompanyID = '0000' 
JOIN  
    rw.vw_Reg_Ops r ON r.opsareaID = h.iOpsArea_ID 
        AND h2.ihouse_ID NOT IN (SELECT h2.iHouse_ID 
              FROM rw.fn_GetScopeHouses (0, getdate(), NULL, NULL, 0) h2 
JOIN  
    House h ON h.iHouse_ID = h2.iHouse_ID 
JOIN  
    rw.vw_Reg_Ops r ON r.opsareaID = h.iOpsArea_ID 
JOIN 
    DBPROD02.houses_App.dbo.subAcct ON right(h.cGLSubaccount, 3) = RIGHT(RTRIM(consolsub), 3) 
WHERE 
    S4future02 = 'FHLMC')

我想...

from rw.fn_GetScopeHouses (@Scope, @dtReport, NULL, NULL, 0) h2 
JOIN House h on h.iHouse_ID = h2.iHouse_ID 
AND h.cCompanyID = @CompanyID 
JOIN rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID 
IF(@CompanyID = '0000') 
BEGIN 
    AND h2.ihouse_ID not in (select h2.iHouse_ID 
    from rw.fn_GetScopeHouses (0, getdate(), NULL, NULL, 0) h2 
    JOIN House h on h.iHouse_ID = h2.iHouse_ID 
    JOIN rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID 
    JOIN DBPROD02.houses_App.dbo.subAcct on right(h.cGLSubaccount,3)=RIGHT(RTRIM(consolsub), 3) 
    where S4future02 = 'FHLMC') 
END

但是當我試圖保存更改，我得到了錯誤

Msg 137, Level 15, State 2, Line 186 
Must declare the scalar variable "@CompanyID". 
Msg 102, Level 15, State 1, Line 194 
Incorrect syntax near 'END'.

變量已經在這裏宣佈...

ALTER PROCEDURE [rw].[sp_EFT_NoticeXLSNoDraw] 
    (@Scope varchar(50), @AcctPeriod char(6), @CompanyID nchar(10)) 
AS

我在如何繼續虧損。我究竟做錯了什麼？

來源

2016-12-21 Tetteh

您確定您可以將@CompanyID類型nchar（10）與任何類型的h.cCompanyID進行比較嗎？ – FailedUnitTest

是的。傳遞的值是cCompanyID列中的值。 – Tetteh

首先，在放入查詢之前，您沒有聲明@CompanyID，使用'declare @companyID int'，然後什麼是完整的SP代碼？第三，你需要在'if'子句中結合查詢條件，否則爲靜態條件，放在'where'後面，最後但並非最不重要的是，如果你不介意，查詢的語法有問題，粘貼整個SP – LONG

最簡單的方法是在開始時只檢查它，因爲有隻有一個分叉，或者你需要檢查一個條件。就算要複製你的代碼，但至少它更容易調試和管理...

CREATE someProcedure (@CompanyID varchar(16)) --insert other variables as needed 
AS 


CREATE TABLE #Houses (
iHouse_ID  int, 
cName   varchar(50), 
cNumber   varchar(10), 
cPhoneNumber1 varchar(25), 
cAddressLine1 varchar(50), 
cCity   varchar(30), 
cStateCode  varchar(2), 
cZipCode  varchar(10), 
iUnitsAvailable int, 
iRegOpsNumber int, 
cOpsName  varchar(50), 
iRegionID  int, 
cRegionName  varchar(50)) 

IF @CompanyID = '0000' 
    BEGIN 

     insert into #Houses (
     iHouse_ID, 
     cName, 
     cNumber, 
     cPhoneNumber1, 
     cAddressLine1, 
     cCity, 
     CStateCode, 
     cZipCode, 
     iUnitsAvailable, 
     iRegOpsNumber, 
     cOpsName, 
     iRegionID, 
     cRegionName) 
     select 
     h2.iHouse_ID, 
     h.cName, 
     h.cNumber, 
     h.cPhoneNumber1, 
     h.cAddressLine1, 
     h.cCity, 
     h.CStateCode, 
     h.cZipCode, 
     h.iUnitsAvailable, 
     r.RegOpsNumber, 
     r.opsname, 
     r.iRegion_ID, 
     r.regionname 
     from rw.fn_GetScopeHouses (@Scope, @dtReport, NULL, NULL, 0) h2 
     JOIN House h on h.iHouse_ID = h2.iHouse_ID 
     AND h.cCompanyID = '0000' 
     JOIN rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID 
     AND h2.ihouse_ID not in (select h2.iHouse_ID 
     from rw.fn_GetScopeHouses (0, getdate(), NULL, NULL, 0) h2 
     JOIN House h on h.iHouse_ID = h2.iHouse_ID 
     JOIN rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID 
     JOIN DBPROD02.houses_App.dbo.subAcct on right(h.cGLSubaccount,3)=RIGHT(RTRIM(consolsub), 3) 
where S4future02 = 'FHLMC') 
    END 

ELSE 

    BEGIN 

     insert into #Houses (
     iHouse_ID, 
     cName, 
     cNumber, 
     cPhoneNumber1, 
     cAddressLine1, 
     cCity, 
     CStateCode, 
     cZipCode, 
     iUnitsAvailable, 
     iRegOpsNumber, 
     cOpsName, 
     iRegionID, 
     cRegionName) 
     select 
     h2.iHouse_ID, 
     h.cName, 
     h.cNumber, 
     h.cPhoneNumber1, 
     h.cAddressLine1, 
     h.cCity, 
     h.CStateCode, 
     h.cZipCode, 
     h.iUnitsAvailable, 
     r.RegOpsNumber, 
     r.opsname, 
     r.iRegion_ID, 
     r.regionname 
     from rw.fn_GetScopeHouses (@Scope, @dtReport, NULL, NULL, 0) h2 
     JOIN House h on h.iHouse_ID = h2.iHouse_ID 
     AND h.cCompanyID = @CompanyID 
     JOIN rw.vw_Reg_Ops r on r.opsareaID = h.iOpsArea_ID 
    END 

    SELECT * FROM #Houses

來源

2016-12-21 17:36:11 scsimon

我做到了這一點，它的工作！謝謝scsimon。它不漂亮，但它的工作，我需要它今天工作！ – Tetteh

不用擔心@Tetteh和我喜歡簡單且易於維護的代碼，而不喜歡複雜的邏輯。 – scsimon

您可以只使用一個case語句進行join條件默認爲匹配比較，如果在@Company值不0000：

select Columns 
from Tables t 
    join OtherTables ot 
     on t.Column1 = ot.Column2 
      and case when @Company = '0000' 
        then case when ihouse not in(<values>) 
           then 1 
           else 0 
           end 
        else 1 
        end = 1

來源

2016-12-21 17:36:05 iamdave

您需要實現類似下面在你的程序的兩個不同的SQL語句。下面是一個僞代碼。

If @CompanyID == '0000' 
--Sql Statement 
else 
--Sql Statement 
endif;

來源

2016-12-21 17:38:55 Baskar

如何根據通過特定變量傳遞的值在我的存儲過程中編寫If語句？

回答

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