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Looking to merge two table on two columns A and B. However, I want to do the following:
Try to match on column A and ONLY IF column A is empty, try to find a match in column B.
What I have now:
#"Merged Queries2" = Table.NestedJoin(#"Merged Queries", {"A","B"}, Activities, {"A","B"}, "Activities2", JoinKind.FullOuter),
Looking for something like (but including the is null for column A condition):
#"Merged Queries2" = Table.NestedJoin(#"Merged Queries", {"A"||"B"}, Activities, {"A"||"B"}, "Activities2", JoinKind.FullOuter),
Is this possible in PowerBI?
I think your answer might be in your question.
Give the Try and Catch a crack?
1. Goodly - Youtube - Try and Catch in Power Query | Smarter way to work with errors in Power Query
2. Error handling - Power Query | Microsoft Docs
Disclaimer: I'm a novice and learning