从T-SQL中的周数中获取日期是指在SQL Server中,根据给定的年份和周数,获取该周的开始日期。在SQL Server中,可以使用DATEFROMPARTS函数来实现这个功能。 以下是一个示例...
set @a = getdate() SELECT @a,DATEADD(day,DATEDIFF(day,0,@a),0) ---顯示星期幾--- select datename(weekday,getdate()) ---如何取得某個月天數--- declare @m int set @m=3 --月份 select datediff(day,'2006-'+cast(@m as varchar)+'-15' ,'2006-'+cast(@m+1 as varchar)+'-15...
(@@Datefirst+datepart(weekday,@Date))%7判断周几是最保险的! 与@@DateFirst无关,与语言版本无关 @@DateFirst可能会导致datepart(weekday,@Date) 不一样! 无论@@DateFirst等于几,无论是什么语言版本的 SQL Server 下面永远恒成立!@@Datefirst+datepart(weekday,@Date)):2、3、4、5、6、0、1分别代表 周...
SQL Server:使用DATEADD函数和条件语句来计算日期范围。 SQL Server:使用DATEADD函数和条件语句来计算日期范围。 执行以上SQL语句,即可获取到第10周的日期范围,包括起始日期和结束日期。 请注意,以上示例中的日期范围计算方式可能因数据库系统的不同而有所差异。在实际使用中,请根据所使用的数据库系统的文档和函数来进...
从T-SQL中的周数中获取日期 - 在Microsoft SQL Server中,我有一个周编号 (from DATEPART(wk, datecol)) 但我想做的是将其重新转换为该周的日期范围。 例如, SELECT DATEPART(wk, GETDATE()) 收...
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