獲取每年僅有月和日的日期範圍

Question

我需要在每年的7月1日至10月31日之間獲取日期範圍。基於此，我必須更新另一列。

日期字段是日期時間。應該是這樣的：

Select Cash = Case When date between '1st July' and '31st October' Then (Cash * 2) End 
From MytTable 

注意：這個範圍應該適用於每一年。

Answer 1

這是一種方式：

SELECT Cash = CASE WHEN RIGHT(CONVERT(VARCHAR(8),[date],112),4) 
       BETWEEN '0701' AND '1031' THEN Cash*2 
       ELSE Cash END --I added this 

Answer 2

對於你的情況，你可以只使用了一個月，並確保它落在7 10.

之間

這是您的查詢將會如何：

select Cash = case when month([Date]) in (7, 8, 9, 10) then (Cash * 2) else Cash end 

或

select Cash = case when month([Date]) between 7 and 10 then (Cash * 2) else Cash end 

Answer 3

請嘗試這一個：

DECLARE @DT DATE = GETUTCDATE() , @START_DATE VARCHAR(10) = '07-01' , @END_DATE VARCHAR(10) = '10-31' 
SELECT 
CASE 
    WHEN RIGHT(@DT,5) BETWEEN @START_DATE AND @END_DATE 
    THEN 
    (CASH * 2) 
    ELSE 
    'NO MATCH' 
END AS CASH 

Answer 4

此解決方案爲我工作以獲得一些按月份和日期重複計劃的主題。它處理跨越多個年例如定於11月1日至3月1日

的項目我的數據存儲這樣的：

ThemeName, StartMonth, StartDay, EndMonth, EndDay 
Christmas, 12,1,12,26 
Winter, 11, 1, 3, 1 
Spring, 3,1,5,1 
Sports, 0,0,0,0 //continuous 

下面是該查詢：

SELECT 
     DISTINCT ThemeName 
    FROM (
     SELECT 
      CASE WHEN EndDate < StartDate AND ((Current Between StartDate AND 1231) OR (Current Between 0101 AND EndDate)) THEN -- span multiple year between dates 
       ThemeName 
      WHEN StartDate < EndDate AND Current Between StartDate AND EndDate THEN -- normal between dates 
       ThemeName 
      WHEN StartDate = 0 AND EndDate = 0 THEN -- continuous 
       ThemeName 
      ELSE 
       'NG' 
      END as ThemeName 
     FROM (
       SELECT 
         ThemeName, StartDate, EndDate, Current 
       FROM (  
         SELECT 
          ThemeName, 
          CAST(Concat(LPAD(CONVERT(StartMonth , CHAR(2)),2,'0'), LPAD(CONVERT(StartDay , CHAR(2)),2,'0')) as DECIMAL) as StartDate, 
          CAST(Concat(LPAD(CONVERT(EndMonth , CHAR(2)),2,'0'), LPAD(CONVERT(EndDay , CHAR(2)),2,'0')) as DECIMAL) as EndDate, 
          CAST(Concat(LPAD(CONVERT(MONTH(CURRENT_DATE) , CHAR(2)),2,'0'), LPAD(CONVERT(DAY(CURRENT_DATE) , CHAR(2)),2,'0')) as DECIMAL) as current 
         FROM 
          companythemeschedules 
         WHERE 
          companyid = 221 
       ) a 

     ) b 
    ) c 
    WHERE 
     ThemeName != 'NG'