MDX向客戶展示本月已下訂單但不是去年本月的客戶

Question

我很困惑mdx看起來像返回所有本月下訂單但未下訂單的客戶（ $ 0銷售額）爲上一年同月。

我將Order Amount作爲度量值，CustomerId作爲維度，Date作爲維度。

Answer 1

你需要添加一些你已經嘗試過的代碼。

在mdx僞代碼將是這樣的：

Except( 
    NonEmpty(
     {all members}      //<<try a function that returns a set such as `.MEMBERS` 
     ,(thisMonth, OrderAmountMeasure) //<<the braces mean this is a tuple made up of two members 
    ) 
    ,NonEmpty(
     {all members}     
     ,(equivMonthLastYear, OrderAmountMeasure) //<<you could try the .LAG function to go back 12 months 
    ) 
    ) 

編輯：

iif(
    equivMonthLastYear = 0, 
    null, 
    Except( 
    NonEmpty(
     {all members}      //<<try a function that returns a set such as `.MEMBERS` 
     ,(thisMonth, OrderAmountMeasure) //<<the braces mean this is a tuple made up of two members 
    ) 
    ,NonEmpty(
     {all members}     
     ,(equivMonthLastYear, OrderAmountMeasure) //<<you could try the .LAG function to go back 12 months 
    ) 
    ) 
)