关于一些时间的操作 C# or SQL
<div id="cnblogs_post_body">1.C# 读取今天所在周、月的开始与结束时间DateTime beginDateTime = DateTime.Now.Date;
DateTime endDateTime = beginDateTime;
beginDateTime = beginDateTime.AddDays(-(int)beginDateTime.DayOfWeek); //得到周的开始时间
endDateTime = beginDateTime.AddDays(6); //得到周的结束时间
beginDateTime = new DateTime(beginDateTime.Year,beginDateTime.Month,1); //得到月的开始时间
endDateTime = beginDateTime.AddMonths(1).AddDays(-1); //得到月的结束时间
2.SQL 读取今天所在的周、月的开始与结束时间
DECLARE @BeginDateTime DateTime
SELECT @BeginDateTime = DATEADD(DAY,1-DATEPART(WEEKDAY,GETDATE()),GETDATE())
SELECT CONVERT(VARCHAR(20),@BeginDateTime,23) AS WeekBeginDateTime,CONVERT(VARCHAR(20),DATEADD(DAY,6,@BeginDateTime),23) AS WeekEndDateTime
SELECT CONVERT(VARCHAR(20),DATEADD(DAY,-DATEPART(DAY,GETDATE())+1,GETDATE()),23) AS MonthBeginDateTime,CONVERT(VARCHAR(20),DATEADD(MONTH,1,DATEADD(DAY,-DATEPART(DAY,GETDATE())+1,GETDATE())),23) AS MonthEndDateTime
此是个人小小日记
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