SSAS - Category Dimension - Unknown Member

Question

I have an issue with getting my dimension set up properly. Basically I have a fact table that holds details on events. Each event can be categorized, but at different levels. I have a category dimension that holds all the categories, subcategories. There are three levels of categories. Some categories have subcategories while others do not.

When I'm browsing the dimension I get drill downs for each item but the drill-downs sometimes end up displaying blank items(blue circle, no text).

So I guess I have a category dimension that is holding categories of different granularity.

I have been playing around with the settings for NULL processing and UnknownMember without really understanding fully how it affects things.

Perhaps someone out there can give me a few tips or advice on the issue.

I'm using SQL Server 2012

Thanks

Answer 1

You should investigate Ragged Hierarchies http://msdn.microsoft.com/en-us/library/ms365406.aspx . There are several options for a given level on hierarchy for the HideMemberIf property.

Answer 2

Yes, this is a ragged hierarchy. The simplest solution is that if a node is null, copy it's parent key / caption down to it.