我想知道两天之间的总天数:
1/1/2011 3/1/2011 RETURN 62
在 SQLServer 中可以做到吗?
SQLServerDateDiff
DECLARE @startdate datetime2 = '2007-05-05 12:10:09.3312722'; DECLARE @enddate datetime2 = '2009-05-04 12:10:09.3312722'; SELECT DATEDIFF(day, @startdate, @enddate);
你可以试试这个 MSDN 链路
DATEDIFF ( datepart , startdate , enddate ) SELECT DATEDIFF(DAY, '1/1/2011', '3/1/2011')
PRINT DATEDIFF(DAY, '1/1/2011', '3/1/2011')会给你你想要的。
PRINT DATEDIFF(DAY, '1/1/2011', '3/1/2011')
这给出了两个日期之间午夜边界被跨越的次数。如果你把两个日期都包括在计数中,你可能会决定需要添加一个日期,或者如果你不想包括任何一个日期,就减去一个。
见 DateDiff:
DECLARE @startdate date = '2011/1/1' DECLARE @enddate date = '2011/3/1' SELECT DATEDIFF(day, @startdate, @enddate)
SELECT DATEDIFF(day, '2005-12-31 23:59:59.9999999', '2006-01-01 00:00:00.0000000');
另一种日期格式
select datediff(day,'20110101','20110301')
如果你想做同样的事情存储过程,那么你需要应用下面的代码。
select (datediff(dd,'+CHAR(39)+ convert(varchar(10),@FromDate ,101)+ CHAR(39)+','+CHAR(39)+ convert(varchar(10),@ToDate ,101) + CHAR(39) +')) Daysdiff
其中@FROM date 和@todate 是 SP 的参数
DECLARE @FDate DATETIME='05-05-2019' /*This is first date*/ GETDATE()/*This is Current date*/ SELECT (DATEDIFF(DAY,(@LastDate),GETDATE())) As DifferenceDays/*this query will return no of days between firstdate & Current date*/
这是为我工作-
SELECT DATEDIFF(DAY, startdate, enddate) AS DayCount Example : SELECT DATEDIFF(DAY, '11/30/2019', GETDATE()) AS DayCount