查找给定日期之间的月份[重复]答案

【问题标题】：Finding months between given dates [duplicate]查找给定日期之间的月份[重复]
【发布时间】：2012-09-24 09:19:09
【问题描述】：

可能重复：
Months between two dates

我需要带来结果，两个日期之间的月份是多少。

例如。假设日期是

Declare @FrDate datetime,@ToDate datetime
Set @FrDate ='2010-05-31 17:38:58.577' 
Set @ToDate ='2010-09-01 17:38:58.577'

需要输出

Result
MAY
JUN
JUL
AUG
SEP

【问题讨论】：

日期维度表可以让这个问题变得简单...

标签： sql sql-server sql-server-2008 tsql date

【解决方案1】：

试试这个：

DECLARE @FrDate  DATETIME,
        @ToDate    DATETIME;

Set @FrDate ='2010-05-31 17:38:58.577' 
Set @ToDate ='2010-09-01 17:38:58.577'

;WITH MONTHS (date)
AS
(
    SELECT @FrDate
    UNION ALL
    SELECT DATEADD(month,1,date)
    from months
    where date<=@ToDate
)
SELECT Datename(month,date) AS MONTH FROM MONTHS

结果：

MONTH
-----------------
May
June
July
August
September

(5 row(s) affected)

要在结果中获得短月份名称，您可以使用以下行：

SELECT LEFT(CONVERT(VARCHAR,date,100),3) AS MONTH FROM MONTHS

要获取大写的月份名称，您可以使用 UPPER 函数：

SELECT UPPER(LEFT(CONVERT(VARCHAR,date,100),3)) AS MONTH FROM MONTHS

【讨论】：

【解决方案2】：

创建一个calendar table，然后你可以简单地这样写：

select distinct MonthName
from dbo.Calendar
where BaseDate between @StartDate and @EndDate

【讨论】：

【解决方案3】：

另一种方法

Declare @FrDate datetime,@ToDate datetime 
Set @FrDate ='2010-05-31 17:38:58.577'  
Set @ToDate ='2010-09-01 17:38:58.577' 

select 
    datename(month,dateadd(month,number-1,@FrDate)) as month_name
from 
    master..spt_values 
where 
    type='p'and number between 1 and datediff(month,@frdate,@todate)+1

【讨论】：