Strange
The evil machinations of SAP are becoming familiar to me.
I think I finally get what “metadata” is within a database. I think they are equivalent to the MS Access concept of “Relationships” … if I’m getting the concept right. These define many-to-one, one-to-one, and one-to-many correspondences between different tables of data.
I also now understand the whole star schema thing, and it is brilliance. I think it is often the intuitive default, but forcing it is probably a great idea.