DAX：对C列中的数据求和，并按B列进行过滤，其中关系在A列上

Question

I need help,

I have to data sources in Excel where table A has a UID and table B has that same UID related many to single (many on table B, the single value on table A).

I want to add all the numerical data in column C on file B but only when column B value is "yes" and show that on table A based on the UID relationship between tables.

Answer 1

You should be able to do this with a SUMX in a calculated column:

YesSumC = SUMX(TableB,
               IF(TableB[Column B] = "yes" &&
                  TableB[UID] = TableA[UID],
                  TableB[Column C], 0))

Instead of explicitly matching on UID you could also use RELATEDTABLE like this:

YesSumC = SUMX(RELATEDTABLE(TableB),
               IF(TableB[Column B] = "yes",
                  TableB[Column C], 0))