Question

我想将此案名称为Brutobedrag，但我无法完成。

SELECT     
    Invoices.InvoiceNr AS Factuurnummer, 
    case(Invoices.IsDebit)
        when 0 then -1*(Invoices.NetAmount + Invoices.BTW + COALESCE (Invoices.BPM, 0)) 
        else Invoices.NetAmount + Invoices.BTW + COALESCE (Invoices.BPM, 0)
    end 
from
    Brands INNER JOIN
    Invoices ON Brands.Id = Invoices.Brand INNER JOIN
    SalesPersons ON Invoices.SalesPerson = SalesPersons.Id LEFT OUTER JOIN
    Payments ON Invoices.Id = Payments.InvoiceId

where
    Invoices.InvoiceDate > '2011-12-31'

group by
    Invoices.InvoiceNr,
    Invoices.NetAmount,
    invoices.BTW,
    invoices.BPM,
    Invoices.IsDebit

Answer 1

case when Invoices.IsDebit = 0 
     then -1*(Invoices.NetAmount + Invoices.BTW + COALESCE (Invoices.BPM, 0)) 
     else Invoices.NetAmount + Invoices.BTW + COALESCE (Invoices.BPM, 0)
end as Brutobedrag

Answer 2

当它'BC'时

选择（CAS''BC'当'BC'然后1'当AC'那么4 当'CL'那么3 ELSE''END） UNION（选择（案例'BC'当'BC'那么2 ELSE''END）） UNION（选择（案例'BC'当'BC'那么22 ELSE''END）） UNION（选择（案例'BC'当'BC'那么24 ELSE''END）） UNION（选择（案例'BC'当'BC'那么5 ELSE''END））

ANS：1 2 五 22 24

完全可以使用单个条件获取多个值

在Case语句中使用Alias

2 个答案: