Sql server 获取最小输入时间和最大输出时间。Sql Server中的Fom考勤记录

我正在开发考勤系统，下面是我在sql server数据库中的数据

|EmpCode|Date       |WorkDate   |CheckIn    |CheckOut   |TotalTime
|143    |2017-02-13 |2017-02-13 |20:09:02   |22:38:50   |2.496666000
|143    |2017-02-13 |2017-02-13 |22:59:19   |23:18:15   |0.315555000
|143    |2017-02-13 |2017-02-13 |23:33:47   |05:04:24   |5.510277000
|143    |2017-02-14 |2017-02-13 |02:52:38   |05:12:04   |2.323888000
|143    |2017-02-14 |2017-02-14 |20:09:26   |21:59:27   |1.833611000
|143    |2017-02-14 |2017-02-14 |22:30:10   |22:49:26   |0.321111000
|143    |2017-02-15 |2017-02-14 |05:05:05   |05:08:13   |0.052222000

--我想要像这样的输出

|EmpCode|wrk        |InTime     |OutTime    |TotalTime
|143    |2017-02-13 |08:09:02 PM|05:12:04 AM|10:38:00
|143    |2017-02-14 |08:09:26 PM|05:08:13 AM|02:12:00

---

假设您需要这些特定的时间格式：

雷克斯测试仪：

查询：

select 
     EmpCode
  ,  wrk       = convert(varchar(10),WorkDate,120)
  ,  InTime    = format(cast(min(Date + CheckIn) as datetime), 'hh:mm:ss tt')
  ,  OutTime   = format(cast(max(Date + CheckOut) as datetime), 'hh:mm:ss tt')
  ,  TotalTime = format(dateadd(minute,sum(TotalTime)*60,0), 'HH:mm:ss')
from t
group by 
    EmpCode
  , WorkDate

结果:

+---------+------------+-------------+-------------+-----------+
| EmpCode |    wrk     |   InTime    |   OutTime   | TotalTime |
+---------+------------+-------------+-------------+-----------+
|     143 | 2017-02-13 | 08:09:02 PM | 05:12:04 AM | 10:38:00  |
|     143 | 2017-02-14 | 08:09:26 PM | 05:08:13 AM | 02:12:00  |
+---------+------------+-------------+-------------+-----------+

---

将为您的表中每个用户每天提供最小的

InTime

、最大的

OutTime

和总的

TotalTime

。

SQLzim有一个很好的答案。他们只需要确定入住日期和退房时间。你是怎么得到这些总数的？您使用的是符号值吗？求和总时间。你得到10.646分左右。十小时就是十小时。以.646*60为例，你大概得到38。我以你使用哪个版本的总时间为参考。。。你标记了4。。。删除与您的版本不匹配的标记。在删除答案之前，您的路径肯定是正确的，更新看起来不错！谢谢当我注意到格式不是结果中指定的格式时，我退出了，并希望在恢复之前进行测试。@xQbert您的个人资料中的帖子链接已被删除：（哦，好吧。我会删除链接。谢谢。但我会保留交换的要点。我仍然觉得它很有趣。@xQbert我同意，希望我能在上下文中看到它。不要认为这可以正确处理第四行，因为“Min”签入将是02:52:38，并且总时间的格式不正确。

select  *
,       datediff(minute, first_in, last_out) as Totaltime
from    (
        select  emp_reader_id
        ,       min(case when Event_entry.event_entry_name = 'IN' then trnevents.DT end) as Intime
        ,       max(case when Event_entry.event_entry_name = 'OUT' then trnevents.DT end) as Outtime
        ,       cast(min(trnevents.DT) as date) as date
        from    trnevents inner join Event_entry on trnevents.EventCatId=Event_entry.EventCatId
        group by
                emp_reader_id
        ,       cast(trnevents.DT as date)
        ) as SubQueriesMustBeNamed

select EmpCode, WorkDate as wrk, min(InTime) as InTime, max(OutTime) as OutTime, Sum(TotalTime) as TotalTime
from yourtable
group by EmpCode, WorkDate

select  *
,       datediff(minute, first_in, last_out) as Totaltime
from    (
        select  emp_reader_id
        ,       min(case when Event_entry.event_entry_name = 'IN' then trnevents.DT end) as Intime
        ,       max(case when Event_entry.event_entry_name = 'OUT' then trnevents.DT end) as Outtime
        ,       cast(min(trnevents.DT) as date) as date
        from    trnevents inner join Event_entry on trnevents.EventCatId=Event_entry.EventCatId
        group by
                emp_reader_id
        ,       cast(trnevents.DT as date)
        ) as SubQueriesMustBeNamed