Question

我的表数据如下所示：

 LogId  EmployeeId      LogTime                      Date
    31          22  09:59:00 AM   2011-11-04 00:00:00.000
    40          22  12:15:00 PM   2011-11-04 00:00:00.000
    43          22  13:15:00 PM   2011-11-04 00:00:00.000 
    45          22  18:16:00 PM   2011-11-04 00:00:00.000
    47          22  18:40:00 PM   2011-11-04 00:00:00.000

我想在报告中提供此类数据：

SNo.  EmpID  In Duration  Out Duration  Punch Records       
1     22   09:59       18:16            (09:59 in, 12:15 out, 13:15 in, 18:16 out)

-------回答查询----------

if object_id('tempdb..#timing') is not null drop table #timing

create table #timing (
    logid int identity(1, 1),
    empid int,
    logtime datetime
)

insert into #timing
select 11, '20111201 8:03' union all select 11, '20111201 8:09' union all
select 12, '20111201 8:38' union all select 12, '20111201 9:31' union all
select 12, '20111201 9:31' union all select 12, '20111201 9:36' union all
select 11, '20111201 9:37' union all select 11, '20111201 9:44' union all
select 11, '20111201 9:48' union all select 11, '20111201 9:50'


;with cte as (
    select top 100 percent 
        empid,
        cast(datepart(hh, logtime) as varchar(2)) + ':' +
        right('0' + cast(datepart(mi, logtime) as varchar(2)), 2) as logtime,
        row_number() over (partition by empid order by logid) as row
    from #timing
    order by logid asc
)
select c1.empid as EmployeeID, min(c1.logtime) as InTime, max(c2.logtime) as OutTime, min(isnull(p.punches, '')) as Punches
from cte c1
join cte c2 on c1.row + 1 = c2.row and c1.empid = c2.empid
left join (
    select empid,
        (select '(' + stuff(
            (select ', ' +c1.logtime + ' In, ' + c2.logtime + ' Out'
            from cte c1
            join cte c2 on c1.row + 1 = c2.row and c1.empid = c2.empid
            where c1.row % 2 = 1 and c3.empid = c1.empid
            for xml path(''), type).value('text()[1]','varchar(max)'), 1, 2, '') + ')'
        ) as punches
    from cte c3
    group by empid
) as p on p.empid = c1.empid
group by c1.empid
order by c1.empid

在此查询中，我使用Logtime字段类型varchar作为字符串，将Date字段用作DateTime，以帮助我更改此查询。

这个查询很完美，但我已经将logtime用作varchar类型。所以我的报告中没有得到完美的输出。

怎么能实现呢？

Answer 1

这是你在找什么：

convert(min(c1.logtime), varchar(12), 14) as InTime

有关SQLServer here中数据类型转换的更多信息。

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