如何在 DAX 中从我的 table 的某些条件下从另一个 table 获取记录?

How can I bring a record from another table with certain conditions from my table in DAX?

我有两个 table。一份提供技术支持的日期和客户 ID [Table 1],另一份提供发送给客户的调查 [Table 2])。问题是调查是在服务完成几天后发送的。因此,我需要从调查 table 中找到最接近日期的调查 ID,并将其带给我的技术支持 table。这是我的数据样本和想要的结果。

Table1:

TechSupportDate   CustomerID
01/12/2018          1
02/12/2018          2
05/12/2018          1

Table2:

SurveyID SurveyDate   CustomerID   
1001     04/12/2018     1
1002     04/12/2018     2
1003     10/12/2018     1

预期结果:

TechSupportDate    CustomerID SurveyDate     SurveyID
01/12/2018          1         04/12/2018      1001
02/12/2018          2         04/12/2018      1002
05/12/2018          1         10/12/2018      1003

向表 1 添加计算列:

SurveyDate = 
CALCULATE ( 
    MIN ( Table2[SurveyDate] ),
    FILTER ( 
        Table2,
        Table2[SurveyDate] >= Table1[TechSupportDate] && Table2[CustomerID] = Table1[CustomerID]
    )
)

SurveyID = 
CALCULATE ( 
    FIRSTNONBLANK ( Table2[SurveyID], 1 ),
    FILTER ( 
        Table2,
        Table2[SurveyDate] = Table1[SurveyDate] && Table2[CustomerID] = Table1[CustomerID]
    )
)

这是一个 PBIX 的工作示例:https://excel.solutions/so_54693431/