我们可以比较 DAX Power BI 中 Switch Case 中的两个表吗？

Question

Is it possible to include columns from 2 different tables in DAX Switch Function?

Both of my tables are linked by Many to Many Relationship.
I am trying to create a calculated column in Table A where I want to compare Columns from Table B, but I can't add the Table B column in the DAX Switch formula.
Any suggestions would be appreciated.

Thanks & Regards,
Pratik

Sample
Table B
Table A & Expected Result

Answer 1

Instead of trying to use two columns from two different tables for comparison in DAX, you can use the 'RELATED` DAX function to import a column from Table A to Table B or vice-versa. Then you can use this column for comparison in DAX.

Just set the appropriate relationship between Table A and Table B and create a new column with the RELATED DAX function to import the table that you want to use in the SWITCH function.

Answer 2

In my opinion, it doesn't matter whether this table has many relationship, the only thing matter is that you are calculated based on your original table instead of calculate on a new measure, then result is unpredictable:

By create new table from the original table, and add column for the comment, I can provide result as your expectation, hope it solve your problem and accept the answer:)

1. Create new table from original table (Sheet1 is my old table) and select on ID column

   Table = SELECTCOLUMNS(Sheet1,"ID",Sheet1[ID])

2. Create new column for comment

   Column = SWITCH(LOOKUPVALUE('Sheet1'[Value],Sheet1[ID],'Table'[ID]), 0,"Matched with A","Matched with B")

The outcome for the new table: