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I have been trying to fix a model that had several synthetic keys and even a circular reference. After joining some tables, creating new keys and using mapping load when possible, I ended up with a model looking like this:
So I have two keys (Supplier_Group_Key and PO_Item_Key) that link three tables each. Even though the model works and the numbers are correct, as I am not really a data model expert, my question is, is this a good practice or there is a better way to do it?
This is just for learning purposes. Thanks!