What to do when a single attribute rolls up to multiple categories?

pzajkowski at 19h05
15
Feb
2010
What to do when a single attribute rolls up to multiple categories?

I'm working with healthcare claims data, and developing a new data warehouse.

A single pharmacy claim line will have a drug identifier called a NDC (national drug code). A single NDC may belong to one or more drug categories. Given the one-to-many relationship of NDC to drug category, what would be the recommended way to build a drug dimension? Would it be advisable to stamp the drug category in the fac
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"What to do when a single attribute rolls up to multiple categories?"

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15/02/2010 at 19h05 by "pzajkowski"