Very cool.
I had to have a go at this one because I was hopeful there would be a way of having the Date/Product joined as a composite key. Apparently not!
This is a decent workaround though, thanks Paula!
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oh that's an interesting take, it makes a lot of sense and sounds almost plausible - to the extent you have given me an idea!!!!
Can you make derived tables?
So the join, or foreign key table would be 'date'+'product' - 60 rows if there were 15 dates and 4 products. Dunno, other examples i've seen online use the same approach as you :)
its works in sql and I think with a little DAX magic you could get it to work.
When I was hunting for help I saw DAX mentioned but you know, I got things to do and people to see :P