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我正在使用内部连接，我想将 2 个结果组合到单个表中显示。
我创建了查询来检查迟到和早退，现在我希望两个输出都显示为一个单一的表。
查询迟到：

    select k.EmpId,Min(k.DateofCheckin) as mindate,
    case 
    when min(time(DateofCheckin))<=@i then 'Ontime'
    when min(time(DateofCheckin)) between @i and @j then 'Late'
    when min(time(DateofCheckin)) between @j and @n then 'HalfDay'
    when DAYOFWEEK(Date(DateofCheckin)) =7 and  min(time(DateofCheckin)) >@j  then 'HalfDay'
    else 'Absent' end as LoginStatus
    from CheckInLogs k Join
    (select 
    @i:=time(r.LateComer) as LateComing,
    @j:=time(r.LateComingEndTime) as LateComingEnd,
    @m:=time(LunchStartTime),
    @n:=time(LunchEndTime),
    @o:=time(EarlyLeavingStartTime),
    @p:=time(EarlyLeavingEndTime), 
    e.EmpId
    FROM Employees e JOIN Profiles r ON e.LeaveProfile=r.ProfileName) h
    on k.EmpId=h.EmpId
    where k.DateofCheckin='in'  and  
    DAYOFWEEK(Date(k.DateofCheckin)) != 1 and
    k.BranchId=1 and date(DateofCheckin) between '2013-05-1' and '2013-05-29'
    group BY date(k.DateofCheckin),k.EmpId

提前离开查询：

select 
    EmpId,Date(DateofCheckin) as LogoutDate,DateofCheckin,max(time(DateofCheckin)) as LogoutTime,
    case 
    when max(time(DateofCheckin))>=@p then 'Ontime'
    when DAYOFWEEK(Date(DateofCheckin)) =7 and  max(time(DateofCheckin)) < @m
    then 'HalfDay'
    when DAYOFWEEK(Date(DateofCheckin)) =7 and  max(time(DateofCheckin)) > @m  then 'Ontime'
    when max(time(DateofCheckin)) between @o and @p then 'EarlyLeaving'
    when max(time(DateofCheckin)) between @m  and @o then 'HalfDay'
    when max(time(DateofCheckin))<=@m then 'Absent'
    else 'Absent' end as LogoutStatus
    from CheckInLogs k1 Join
    (select 
    @i:=time(r.LateComingStartTime) as LateComing,
    @j:=time(r.LateComingEndTime) as LateComingEnd,
    @m:=time(LunchStartTime),
    @n:=time(LunchEndTime),
    @o:=time(EarlyLeavingStartTime),
    @p:=time(EarlyLeavingEndTime), 
    e.EmpId
    FROM Employees e JOIN Profiles r ON e.LeaveProfile=r.ProfileName) h1
    on k1.EmpId=h1.EmpId
    where k1.DateofCheckin='Out' 
    and k1.BranchId=1
    and DAYOFWEEK(Date(k1.DateofCheckin)) != 1 and  
    date(k1.DateofCheckin) between '2013-06-1' and '2013-06-29'
    group BY date(k1.DateofCheckin),k1.EmpId
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1 回答 1

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下面是我如何处理查询的示例，这是一个快速复制和过去的工作，因此您必须修复语法错误等。主要区别在于您只需要在查询开始时获取一次员工详细信息，并在两个当前查询（员工除外）之间添加一个公共字段以加入。在这种情况下，我使用了logoutdate

select *
from (select 
    @i:=time(r.LateComer) as LateComing,
    @j:=time(r.LateComingEndTime) as LateComingEnd,
    @m:=time(LunchStartTime),
    @n:=time(LunchEndTime),
    @o:=time(EarlyLeavingStartTime),
    @p:=time(EarlyLeavingEndTime), 
    e.EmpId
FROM Employees e JOIN Profiles r ON e.LeaveProfile=r.ProfileName) h
JOIN (select 
        EmpId, Date(DateofCheckin) as LogoutDate,
        DateofCheckin,max(time(DateofCheckin)) as LogoutTime,
        case 
            when max(time(DateofCheckin))>=@p then 'Ontime'
            when DAYOFWEEK(Date(DateofCheckin)) =7 and  max(time(DateofCheckin)) < @m
                then 'HalfDay'
            when DAYOFWEEK(Date(DateofCheckin)) =7 and  max(time(DateofCheckin)) > @m                  then 'Ontime'
            when max(time(DateofCheckin)) between @o and @p then 'EarlyLeaving'
            when max(time(DateofCheckin)) between @m  and @o then 'HalfDay'
            when max(time(DateofCheckin))<=@m then 'Absent'
        else 'Absent' end as LogoutStatus
      from CheckInLogs k1    
      where k1.DateofCheckin='Out' 
      and k1.BranchId=1
      and DAYOFWEEK(Date(k1.DateofCheckin)) != 1
      group BY date(k1.DateofCheckin), k1.EmpId) out
ON out.empid = h.empid
JOIN (select k.EmpId, Date(DateofCheckin) as LogoutDate,
                Min(k.DateofCheckin) as mindate,
                case 
                    when min(time(DateofCheckin))<=@i then 'Ontime'
                    when min(time(DateofCheckin)) between @i and @j then 'Late'
                    when min(time(DateofCheckin)) between @j and @n then 'HalfDay'
                    when DAYOFWEEK(Date(DateofCheckin)) =7 
                        and min(time(DateofCheckin)) >@j  then 'HalfDay'
                    else 'Absent' end as LoginStatus
      from CheckInLogs k Join
        where k.DateofCheckin='in'  and  
        DAYOFWEEK(Date(k.DateofCheckin)) != 1 and
        group BY date(k.DateofCheckin),k.EmpId) in
ON in.empid = out.empid
AND in.LogoutDate = out.LogoutDate

我还会考虑将caseandgroup bys移至顶级查询。

于 2013-07-01T09:45:02.163 回答