Quite new to SSAS, wondering if anyone could help with the following...
I've got a dimension with attributes that indicate geographical location based upon UK postal boundaries - so ~1.8m Postcodes > ~10000 Postcode Sectors (PCDS) > ~3000 Postcode Districts (PCD) > ~100 Postcode Areas (PCA).
The problem I have is that the address information is not of the highest quality. I have matched 50% of my facts to postcodes, of the remaining 50% i've mapped them to PCDS, PCD or PCA, where possible, leaving the lower-levels as NULL in those cases.
My attribute hierarchy works fine where I have complete records all the way down the hierarchy, but I only have a single UNKNOWN member at the top (GOR) level. I want an UNKNOWN member at each level. It makes sense to me how to do this using a Parent-Child
dimension, but i'm keen to avoid that as the performance is terrible.
I'm hoping there's a method of configuring this. Any help massively appreciated.
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