Question

我有想要成为SQL命令的代码。

我的表leavetabletest包含以下列：

Holiday, IsRestDay, mNP1, mNP2, mNP3, mNP4, mNP5

首先，我需要分组然后再做案例，如果

怎么做？

   Case Holiday='S'
        If IsRestDay
            mNP4_F8=mNP4_F8+Night_F8    
        Else
            mNP2_F8=mNP2_F8+Night_F8    
        Endif

   Case Holiday='L'
        IF IsRestDay
            mNP5_F8=mNP5_F8+Night_F8    
        Else
            mNP3_F8=mNP3_F8+Night_F8    
        Endif

   Other
        If IsRestDay
            mNP2_F8=mNP2_F8+Night_F8    
        Else
            mNP1_F8=mNP1_F8+Night_F8    
        Endif

我尝试使用案例时，但它不起作用

Select 
    sum(regular),
    case when holiday = 'S' and IsRestDay ='1' then sum(over_F8) end as    mOT6_F8
    case when holiday = 'S' and IsRestDay ='0' then sum(over_F8) end as mOT3_F8
    case when holiday = 'L' and IsRestDay ='1' then sum(over_F8) end as mOT5_F8
    case when  holiday = 'L' and IsRestDay ='0' then sum(over_F8) end as mOT4_F8
    case when holiday <> 'S' and holiday <> 'L' and IsRestDay ='1' then sum(over_F8) end as mOT2_F8
    case when holiday <> 'S' and holiday <> 'L' and IsRestDay ='0' then sum(over_F8) end as mOT1_F8
From 
    leavetabletest
group by 
    EmployeeID, DepartmentID, SectionID

Answer 1

如果没有您的数据样本很难给您一个完整的答案，但根据您的尝试，您需要：

用逗号分隔每个案例陈述;
通过;

holiday

IsRestDay

将EmployeeID，DepartmentID和SectionID添加到您选择的部分（如果这是您需要的 - 不清楚问题）。

看起来应该是这样的：

Select EmployeeID
 , DepartmentID
 , SectionID 
 , sum(regular)
 , case when holiday = 'S' and IsRestDay ='1' then sum(over_F8) end as mOT6_F8
 , case when holiday = 'S' and IsRestDay ='0' then sum(over_F8) end as mOT3_F8
 , case when holiday = 'L' and IsRestDay ='1' then sum(over_F8) end as mOT5_F8
 , case when holiday = 'L' and IsRestDay ='0' then sum(over_F8) end as mOT4_F8
 , case when holiday <> 'S' and holiday <> 'L' and IsRestDay ='1' then sum(over_F8) end as mOT2_F8
 , case when holiday <> 'S' and holiday <> 'L' and IsRestDay ='0' then sum(over_F8) end as mOT1_F8
From leavetabletest
group by EmployeeID
 , DepartmentID
 , SectionID 
 , holiday
 , IsRestDay;

如何成为案例，如果成为sql命令

1 个答案: