Sql server 2005 在SQLServer2005中如何分割时间和计算时差?
我想使用SQLServer2005拆分时间并计算时差 我的默认输出如下所示:Sql server 2005 在SQLServer2005中如何分割时间和计算时差?,sql-server-2005,Sql Server 2005,我想使用SQLServer2005拆分时间并计算时差 我的默认输出如下所示: EnrollNo AttDateFirst AttDateLast 111 2011-12-09 08:46:00.000 2011-12-09 08:46:00.000 112 2011-12-09 08:40:00.000 2011-12-09 17:30:00.000 302 2011-12
EnrollNo AttDateFirst AttDateLast
111 2011-12-09 08:46:00.000 2011-12-09 08:46:00.000
112 2011-12-09 08:40:00.000 2011-12-09 17:30:00.000
302 2011-12-09 09:00:00.000 2011-12-09 18:30:00.000
303 2011-12-09 10:00:00.000 2011-12-09 18:35:00.000
Enroll No ..... FirtTime LastTime Time Diff
111 ..... 8:46:00 8:45:00 00:00:00
112 ..... 8:30:00 17:30:00 9:00:00
302 ..... 9:00:00 18:30:00 9:30:00
303 ..... 10:00:00 18:35:00 8:35:00
我希望我的新输出如下:
EnrollNo AttDateFirst AttDateLast
111 2011-12-09 08:46:00.000 2011-12-09 08:46:00.000
112 2011-12-09 08:40:00.000 2011-12-09 17:30:00.000
302 2011-12-09 09:00:00.000 2011-12-09 18:30:00.000
303 2011-12-09 10:00:00.000 2011-12-09 18:35:00.000
Enroll No ..... FirtTime LastTime Time Diff
111 ..... 8:46:00 8:45:00 00:00:00
112 ..... 8:30:00 17:30:00 9:00:00
302 ..... 9:00:00 18:30:00 9:30:00
303 ..... 10:00:00 18:35:00 8:35:00
你可以用
substring(AttDateFirst,charindex(' ',AttDateFirst)+1 ,
len(AttDateFirst)) as [FirstTime]
选择DATEDIFF(日期,2007-11-302007-11-20)作为NumberOfDays,
DATEDIFF(hour,2007-11-302007-11-20)作为NumberOfHours,
DATEDIFF(分钟,2007-11-302007-11-20)作为从
测试表
你可以使用
substring(AttDateFirst,charindex(' ',AttDateFirst)+1 ,
len(AttDateFirst)) as [FirstTime]
您可以使用以下查询:
select EnrollNo, convert(varchar, AttDateFirst, 8) as FirstTime,
convert(varchar, AttDateLast, 8) as LastTime,
convert(varchar, AttDateLast - AttDateFirst, 8) as [Time Diff]
from YourTable
要返回以下结果:
EnrollNo FirstTime LastTime Time Diff
----------- ------------------------------ ------------------------------ ------------------------------
111 08:46:00 08:46:00 00:00:00
112 08:30:00 17:30:00 09:00:00
302 09:00:00 18:30:00 09:30:00
303 10:00:00 18:35:00 08:35:00
第一个和最后一个日期总是在同一天?是的,在同一天。我正在从打孔机获取记录,以便用户可以在同一天的任何时间打孔,但我们希望获得第一次和最后一次打孔记录,并找出时间差