我在myTable中有一个int字段(Days)。如何将其格式化为年月日字符串?
我想用T-SQL SQL Server 2008执行此操作。
例如:
65天= 0年2月5日
答案 0 :(得分:3)
这里的“零”是1900年1月1日。这给出了与此相关的日期
SELECT
dateadd(day, myColumn, 0)
FROM
myTable
如果您想单独分解组件值
WITH CTE AS
(
SELECT
dateadd(day, myColumn, 0) AS theDate
FROM
myTable
)
SELECT
DATEPART(year, theDate) - 1900,
DATEPART(month, theDate),
DATEPART(day, theDate)
FROM
CTE
然后你也有闰年问题。 1904年2月28日之后,你有1904年2月29日没有100%保证的方式将“天”表示为年+月+天,因为月份长度大约每4年左右。
如果我误解了,将它改为年“零”
SELECT
DATEADD(day, DATEDIFF(day, '0001-01-01', 0), CAST(DATEADD(day, myColumn, 1) as date))
FROM
myTable
答案 1 :(得分:0)
declare @days int
set @days = 65
select
cast(year(dateadd(day,@days,0))-1900 as varchar) + ' Year '
+ cast(month(dateadd(day,@days,0)) as varchar) + ' Month '
+ cast(day(dateadd(day,@days,0)) as varchar) + ' Day'
请记住,这是从junuari的第1个和其他问题来衡量的
答案 2 :(得分:-2)
我得到了这段代码......
select
cast((DATEDIFF(year, StartDate, getdate()))as CHAR(3)) +'years '+
case when (datediff(DAY,DATEADD(month,DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate()),
DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte)),GETDATE()))<0
then
cast(DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate()) -1 AS CHAR(2))
else
cast (DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate())AS CHAR(2))
end +'months '+
-------------------------------------------
case when (datediff(DAY,DATEADD(month,DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate()),
DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte)),GETDATE()))<0
then
cast(datediff(DAY,DATEADD(month,DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate())-1,
DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte)),GETDATE()) as CHar(2))
else
cast(datediff(DAY,DATEADD(month,DATEDIFF(month,DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte), getdate()),
DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte)),GETDATE())as Char(2))
end+'days' as
Lenghtofservice
--DATEADD(year,(DATEDIFF(year, StartDate, getdate())),StartDAte))
from dbo.Employee