使用 case 表达式时对行进行分组

Question

我有以下查询，它给了我下一个结果：

select OBJ_POSITION,

CASE 
    WHEN (EVT_JOBTYPE = 'PM' and EVT_DESC like '%TMPL%') THEN (SUM(CONVERT(float, ACT_EST)))
    ELSE '0'
END as HORAS_TMPL,

CASE 
    WHEN (EVT_JOBTYPE = 'CMS') THEN (SUM(CONVERT(float, ACT_EST)))
    ELSE '0'
END as HORAS_SUST,

CASE 
    WHEN ((EVT_JOBTYPE = 'PM' and EVT_DESC like '%TMPL%') or (EVT_JOBTYPE = 'CMS')) THEN (SUM(CONVERT(float, ACT_EST)))
    ELSE '0'
END as TOTAL_HORAS

from R5ACTIVITIES inner join R5EVENTS on ACT_EVENT = EVT_CODE inner join R5OBJECTS on EVT_OBJECT = OBJ_CODE    
where OBJ_ORG = '156' and OBJ_POSITION like '156-EBM%' and EVT_STATUS = 'R' and EVT_TYPE in ('JOB', 'PPM')    
group by OBJ_POSITION, EVT_JOBTYPE, EVT_DESC


OBJ_POSITION  / HORAS_TMPL / HORAS_SUST / TOTAL_HORAS   
156-EBM01           0            0           0
156-EBM01           0            0           0
156-EBM01           0            0           0
156-EBM02           0            0           0
156-EBM02           0            0           0
156-EBM03           0            0           0
156-EBM04           0            0           0
156-EBM04           8            0           8
156-EBM04           0.5          0           0.5
156-EBM04           0.75         0           0.75
156-EBM04           0            1.5         1.5
156-EBM05           0            0           0
156-EBM05           0            0           0
156-EBM05           0            0           0

信息是正确的，但我只想要每个 OBJ_Position 一行，对其数字 (ACT_EST) 求和，如下所示：

OBJ_POSITION  / HORAS_TMPL / HORAS_SUST / TOTAL_HORAS   
156-EBM01           0            0           0
156-EBM02           0            0           0
156-EBM03           0            0           0
156-EBM04           9.25         1.5         10.75
156-EBM05           0            0           0

我尝试了很多分组依据，但 none 似乎有效。我认为从 group by 中删除 EVT_JOBTYPE 可能会起作用，但随后会抛出错误，因为它不是聚合函数。与 EVT_DESC...

相同

Answer 1

这有帮助吗？

    ;with cte
    As
    (
        select OBJ_POSITION,

        CASE 
            WHEN (EVT_JOBTYPE = 'PM' and EVT_DESC like '%TMPL%') THEN (SUM(CONVERT(float, ACT_EST)))
            ELSE '0'
        END as HORAS_TMPL,

        CASE 
            WHEN (EVT_JOBTYPE = 'CMS') THEN (SUM(CONVERT(float, ACT_EST)))
            ELSE '0'
        END as HORAS_SUST,

        CASE 
            WHEN ((EVT_JOBTYPE = 'PM' and EVT_DESC like '%TMPL%') or (EVT_JOBTYPE = 'CMS')) THEN (SUM(CONVERT(float, ACT_EST)))
            ELSE '0'
        END as TOTAL_HORAS

        from R5ACTIVITIES inner join R5EVENTS on ACT_EVENT = EVT_CODE inner join R5OBJECTS on EVT_OBJECT = OBJ_CODE    
        where OBJ_ORG = '156' and OBJ_POSITION like '156-EBM%' and EVT_STATUS = 'R' and EVT_TYPE in ('JOB', 'PPM')    
        group by OBJ_POSITION, EVT_JOBTYPE, EVT_DESC

    )

    Select OBJ_POSITION, SUM(HORAS_TMPL) as HORAS_TMPL,SUM(HORAS_SUST) as HORAS_SUST,SUM(TOTAL_HORAS) as TOTAL_HORAS
    Group by OBJ_POSITION

使用 case 表达式时对行进行分组

Group rows when using case expresion

sql-server

sql-server-2008-r2