我有一个要求，我必须使用以下每位员工的月度数据生成报告。该报告在每个月的第1天运行，并提供数据直到上个月的第1天。 要求是将这些数据分成每周数据。因此，如果每个月的第一天在“星期一”开始，那么本周应该有5个工作日，“星期二”为4个工作日，“星期三”为3个工作日等等。并根据员工工作的天数计算工作时间相应的一周。如果每周的周数变化，则报告应相应地显示每周的数据。
EmpName Date WorkTime
User1 2016-10-18 NULL
User1 2016-10-20 06:00:38
User1 2016-10-21 07:41:44
User1 2016-10-24 06:35:53
User1 2016-10-25 06:29:03
User1 2016-10-26 07:25:09
User1 2016-10-31 07:49:12
User1 2016-11-03 09:23:05
User1 2016-11-05 NULL
User1 2016-11-07 09:18:38
User1 2016-11-08 09:16:01
User1 2016-11-09 08:05:03
User1 2016-11-11 09:00:43
User1 2016-11-16 09:18:14
以下是上述查询的预期结果。
WeekNum WeekDur EmpName Planned Actual
Week1 18/10 - 22/10 User1 32:00:00 13:42:22
Week2 23/10 - 29/10 User1 40:00:00 20:30:05
Week3 30/10 - 31/10 User1 8:00:00 7:49:12
注意：计划的小时数是根据工作日的数量计算的。意味着周一至周五，因此每天8小时将为每周5天提供40小时。但是，需要计算所有7天的实际小时数，这样如果有人在周末工作，实际情况可以相应地反映任何额外时间而不是计划时间。
注意：NULL表示员工没有正确进行滑入。
很抱歉，但我自己没有尝试任何东西，因为我对这种要求不熟悉并且在处理日期和处理方面缺乏经验。时间查询。
我希望我已提供所有信息，并要求所有人在遇到任何问题或疑惑时与我联系。
答案 0 :(得分：0)
我认为你实际上可以拥有超过24小时的time数据类型，所以我已经把你的时间分成了不同的领域，让你做你想做的事情。您可以通过在cte中添加大日期case语句来取消group by，但这意味着会出现重复的代码，因此需要重复更新代码并且我需要重复更新代码懒：
declare @t table (EmpName nvarchar(10), WorkDate date, WorkTime time);
insert into @t values
('User1','20161018',NULL),('User1','20161020','06:00:38'),('User1','20161021','07:41:44'),('User1','20161024','06:35:53'),('User1','20161025','06:29:03'),('User1','20161026','07:25:09'),('User1','20161031','07:49:12'),('User1','20161103','09:23:05'),('User1','20161105',NULL),('User1','20161107','09:18:38'),('User1','20161108','09:16:01'),('User1','20161109','08:05:03'),('User1','20161111','09:00:43'),('User1','20161116','09:18:14');
with cte as
(
select EmpName
-- Pick the later of either the start of the current week or the current month.
,case when dateadd(wk, datediff(wk,0,WorkDate), 0) < dateadd(month,datediff(month,0,WorkDate),0)
then dateadd(month,datediff(month,0,WorkDate),0) -- This calculates the start of the month.
else dateadd(wk, datediff(wk,0,WorkDate), 0) -- This calculated the start of the week.
end as WeekStart
-- Pick the earlier of either the end of the current week or the current month.
,case when dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) >= dateadd(month,datediff(month,0,WorkDate)+1,0)
then dateadd(d,-1,dateadd(month,datediff(month,0,WorkDate)+1,0)) -- This calculates the last day of the month.
else dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) -- This calculates the last day of the week.
end as WeekEnd
-- Pick the earlier of either the friday of the current week or or the end of the current month.
,case when dateadd(d,4,dateadd(wk, datediff(wk,0,WorkDate), 0)) > case when dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) >= dateadd(month,datediff(month,0,WorkDate)+1,0)
then dateadd(d,-1,dateadd(month,datediff(month,0,WorkDate)+1,0)) -- This calculates the last day of the month.
else dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) -- This calculates the last day of the week.
end
then case when dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) >= dateadd(month,datediff(month,0,WorkDate)+1,0)
then dateadd(d,-1,dateadd(month,datediff(month,0,WorkDate)+1,0)) -- This calculates the last day of the month.
else dateadd(d,6,dateadd(wk, datediff(wk,0,WorkDate), 0)) -- This calculates the last day of the week.
end
else dateadd(d,4,dateadd(wk, datediff(wk,0,WorkDate), 0)) -- This calculates the Friday of the week.
end as WorkingWeekEnd
,datepart(hour,WorkTime) as HoursWorked
,datepart(minute,WorkTime) as MinutesWorked
,datepart(second,WorkTime) as SecondsWorked
from @t
)
select EmpName
,WeekStart
,WeekEnd
,WorkingWeekEnd
,avg(datediff(d,WeekStart,WorkingWeekEnd)+1) * 8 as PlannedHoursWorked
,isnull(sum(HoursWorked),0) as HoursWorked
,isnull(sum(MinutesWorked),0) as MinutesWorked
,isnull(sum(SecondsWorked),0) as SecondsWorked
from cte
group by EmpName
,WeekStart
,WeekEnd
,WorkingWeekEnd
order by EmpName
,WeekStart;
输出：
╔═════════╦═════════════════════════╦═════════════════════════╦═════════════════════════╦════════════════════╦═════════════╦═══════════════╦═══════════════╗
║ EmpName ║ WeekStart ║ WeekEnd ║ WorkingWeekEnd ║ PlannedHoursWorked ║ HoursWorked ║ MinutesWorked ║ SecondsWorked ║
╠═════════╬═════════════════════════╬═════════════════════════╬═════════════════════════╬════════════════════╬═════════════╬═══════════════╬═══════════════╣
║ User1 ║ 2016-10-17 00:00:00.000 ║ 2016-10-23 00:00:00.000 ║ 2016-10-21 00:00:00.000 ║ 40 ║ 13 ║ 41 ║ 82 ║
║ User1 ║ 2016-10-24 00:00:00.000 ║ 2016-10-30 00:00:00.000 ║ 2016-10-28 00:00:00.000 ║ 40 ║ 19 ║ 89 ║ 65 ║
║ User1 ║ 2016-10-31 00:00:00.000 ║ 2016-10-31 00:00:00.000 ║ 2016-10-31 00:00:00.000 ║ 8 ║ 7 ║ 49 ║ 12 ║
║ User1 ║ 2016-11-01 00:00:00.000 ║ 2016-11-06 00:00:00.000 ║ 2016-11-04 00:00:00.000 ║ 32 ║ 9 ║ 23 ║ 5 ║
║ User1 ║ 2016-11-07 00:00:00.000 ║ 2016-11-13 00:00:00.000 ║ 2016-11-11 00:00:00.000 ║ 40 ║ 35 ║ 39 ║ 85 ║
║ User1 ║ 2016-11-14 00:00:00.000 ║ 2016-11-20 00:00:00.000 ║ 2016-11-18 00:00:00.000 ║ 40 ║ 9 ║ 18 ║ 14 ║
╚═════════╩═════════════════════════╩═════════════════════════╩═════════════════════════╩════════════════════╩═════════════╩═══════════════╩═══════════════╝