SQL SELECT本月的第一天和最后一天。 [英] SQL SELECT First Day and Last Day of the Month.

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问题描述

亲爱的专业人员,

我有一个查询来获取本月的第一天和最后一天,但是我的时间戳记存在问题该月的第一天。

I have a query built to get the first and last day of the current month, but I'm having an issue with the time stamp for the First Day of the month.

declare @FirstDOM datetime, @LastDOM datetime

set @FirstDOM = (select dateadd(dd,-(day(getdate())-1),getdate()) )
set @LastDOM = (select dateadd(s,-1,dateadd(mm,datediff(m,0,getdate())+1,0))) 

自2015年2月以来,我希望获得以下结果:

Since it's February of 2015, I would like to get results of:

@FirstDOM = 2015-02-01 00:00:00.000
@LastDOM = 2015-02-28 23:59:59.000

@LastDOM是正确的,但是我没有得到时间戳记部分的零@FirstDOM,我得到正确的日期,但是我运行脚本的时间。假设是上午8:50,我会得到:

@LastDOM is correct, but I'm not getting the zeroes for the time stamp portion of @FirstDOM, I'm getting the correct date, but the time of the time I run the script. Say it's 8:50 a.m., I get:

2015-02-01 08:50:49.160

解决此问题的最佳方法是什么?

What is the best way to fix this little snafu?

问候,

尼克

推荐答案

将@FirstDOM转换为 DATE 如下:

Convert @FirstDOM to DATE as below:

declare @FirstDOM datetime, @LastDOM datetime

set @FirstDOM = (select CONVERT(DATE,dateadd(dd,-(day(getdate())-1),getdate())) )
set @LastDOM = (select dateadd(s,-1,dateadd(mm,datediff(m,0,getdate())+1,0))) 
SELECT @FirstDOM,@LastDOM

我希望这会有所帮助!

谢谢,

Swapnil

这篇关于SQL SELECT本月的第一天和最后一天。的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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