在SQL Server中選擇查詢中的多個案例

我在我的SQL查詢中有一個方案是我必須找出給定日期但多年的嬰兒記錄假設我的選擇日期是= 01/Jan/2014至31/Jan/2014在SQL Server中選擇查詢中的多個案例

我還有一個參數是年份，它要求我隨機選擇以前（1〜3年）出生的嬰兒的數據。假設如果我當前選擇的日期是2014年和年份變量有那麼值2

我必須分別把嬰兒的數據，本年度還每年小於當前日期等下面是我定的場景

-------------------------------------------- 
-- BABIES_TABLE 
ID | Name   | Age | DOB   | 
-------------------------------------------- 
1   JKL   3  21/Jan/2012 
2   DEF   2  09/Jan/2013 
3   ABC   1  04/Jan/2014 
4   XYZ   1  02/Feb/2014 

-- Date Range [01/Jan/2014 - 31/Jan/2014] 
-- Year = 2 
--------------------------------------------- 
ID  | Name | Age | DOB   | 
--------------------------------------------- 
3   ABC   1  04/Jan/2014 
2   DEF   2  09/Jan/2013 



-- Date Range [01/Jan/2014 - 31/Jan/2014] 
-- Year = 3 
--------------------------------------------- 
ID  | Name | Age | DOB   | 
--------------------------------------------- 
3   ABC   1  04/Jan/2014 
2   DEF   2  09/Jan/2013 
1   JKL   3  21/Jan/2012

下面

是我的SQL查詢是不明確的，並且具有error.I有單日期比較，它的正常，但當我添加OR條件，它給了我錯誤

嘗試

--MY SQL Query is Below 

DECLARE @startDate AS DATETIME 
DECLARE @enddate AS DATETIME 
DECLARE @y AS INT 
SET @startDate='2012-10-12' 
SET @enddate='2012-10-20' 
SET @y=2 

SELECT * FROM BABIES_TABLE 
WHERE 
     CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= CASE    
      --If entered Year = 1 
      WHEN @y = 1 THEN   
      (@startDate)          
      --If entered Year = 2 
      WHEN @y = 2 THEN 
        CASE 
        (@startDate) 
        END     
      OR 
        CASE 
        YEAR(@startDate-1) 
        END    

      WHEN @y = 3 THEN 
        CASE 
        (@startDate) 
        END   
      OR 
        CASE 
        YEAR(@startDate-1) 
        END 
      OR 
        CASE 
        YEAR(@startDate-2) 
        END 
     END 
    END 
    AND 
     CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= CASE 
      WHEN @y = 1 THEN   
      (@enddate)          

      WHEN @y = 2 THEN 
        CASE 
        (@enddate) 
        END     
      OR 
        CASE 
        YEAR(@enddate-1) 
        END    

      WHEN @y = 3 THEN 
       CASE 
       (@enddate) 
       END   
      OR 
       CASE 
       YEAR(@enddate-1) 
       END 
      OR 
       CASE 
       YEAR(@enddate-2) 
       END 
     END 
    END

來源

2014-02-21 DareDevil

我不明白的要求是正確的，但在這裏也一樣，我注意到，您正在使用的where子句中的功能。你應該看看這個鏈接 http://stackoverflow.com/questions/799584/what-makes-a-sql-statement-sargable –

我想選擇的多重年同一日期範圍內我剛纔所說的數據，我想做的事情是寫下精確的查詢，可以從用戶的年份多年選擇 - 給出 – DareDevil

也許我很笨，但我不明白你的情況在最後。如果@y = 2，那麼...爲什麼從無條件的另一個案例開始？爲什麼你有答案或答案。你想怎麼做？你想要enddate或enddate -1嗎？還有最後一件事，因爲你的條件<=如果它小於enddate-1它總是<=比enddate它自己所以你爲什麼需要或子句？ –

下面是我已經達到了我想要的結果，但我想這可能是可能的情況下在哪裏。

--------------------------------------------- 

ID | Name   | Age | DOB   | 
-------------------------------------------- 

1 Abid     6 2008-01-01 
2 Zahid    6 2008-01-10 
3 Laila    5 2009-01-15 
4 Ali     5 2010-01-26 
5 Kali     4 2011-01-19 
6 Sali     3 2012-01-08 
7 Brone    2 2013-01-11 
8 Dilche    2 2013-01-29 
9 Alpechino   3 2012-08-20

這是我的存儲過程。

--MY SQL Query is Below 
CREATE PROCEDURE BabyUnionData 
@Year AS INT, 
@Start_Date as varchar(30), 
@End_Date as Varchar(30) 
AS 
BEGIN 


DECLARE @startDate AS DATETIME 
DECLARE @enddate AS DATETIME 
DECLARE @y AS INT 
SET @[email protected]_Date 
SET @[email protected]_Date 
--SELECt * FROM BABIES_TABLE 
PRINT 'For One Year' 
SET @[email protected] 

IF @y = 1  
    BEGIN 
    PRINT 'For One Year' 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= @startDate 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= @enddate 
    END 
ELSE IF @y = 2 
    BEGIN 
    PRINT 'For Two Years' 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= @startDate 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= @enddate 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-1,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-1,@enddate) 
    END 
    ELSE IF @y = 3 
    BEGIN 
     PRINT 'For Three Years' 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= @startDate 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= @enddate 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-1,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-1,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-2,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-2,@enddate) 
    END 
    ELSE IF @y = 4 
    BEGIN 
    PRINT 'For Four Years' 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= @startDate 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= @enddate 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-1,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-1,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-2,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-2,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-3,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-3,@enddate) 
    END 
    ELSE IF @y = 5 
    BEGIN 
    PRINT 'For Five Years' 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= @startDate 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= @enddate 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-1,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-1,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-2,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-2,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-3,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-3,@enddate) 
     UNION 
     SELECT * FROM BABIES_TABLE 
     WHERE 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= DATEADD(Year,-4,@startDate) 
      AND 
      CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEADD(Year,-4,@enddate) 
    END 
END

--Here是StoredProcedure的

使用

Exec BabyUnionData 5,'01-01-2014','01-31-2014'

來源

2014-02-24 05:36:31 DareDevil

歸你開始和結束日期，以及DOB到當年

SET @startDate=DATEADD(yy, YEAR(@startDate)-YEAR(getdate()), @startDate) 
SET @enddate=DATEADD(yy, YEAR(@enddate)-YEAR(getdate()), @enddate) 

select * from babies where 
    Age >= @y -- check that baby is old enough 
    and DATEADD(yy, YEAR(dob)-YEAR(getdate()), dob) between @startDate and @enddate - and the DOB is within a range in a year.

來源

2014-02-21 07:32:39 vittore

** <3 **僅用於數據查看，顯然我有以整數格式存儲的數據。 – DareDevil

我有同樣的解決方案維託雷和ñ思維，問題是我沒有按照你的要求從我的理解。當它今天開始日期結束日期和同一間1回吐了前一年

這裏是一個uneleguant解決方案，我有

create table #y (y tinyint) 
insert into #y values (1) 
insert into #y values (2) 
insert into #y values (3) 


DECLARE @startDate AS DATETIME 
DECLARE @enddate AS DATETIME 
DECLARE @y AS INT 
SET @startDate='2012-10-12' 
SET @enddate='2012-10-20' 
SET @y=2 

SELECT * 
FROM BABIES_TABLE 
cross join #y 
WHERE CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) >= datediff(year, y - 1, @startdate) 
AND CAST(CONVERT(VARCHAR, BABIES_TABLE.DOB, 111) AS DATETIME) <= DATEDIFF(year, y - 1, @enddate) 
and y <= @y

這也許可以用CTE

UPDATE

我有這個想法如果你需要特定的日期測試不長。例如，如果y = 2，則需要dob = 19/02/13或19/02/12或19/02/11，但在19/02/11和19/02/13之間不需要dob。

來源

2014-02-21 07:48:28

這裏Y = 2只是一個例子，在一個例子中我必須找出兩年的數據，這個數值可以從1〜4變化 – DareDevil

在SQL Server中選擇查詢中的多個案例

回答

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