UnionAll (11/30/2012)
Thanks All.Dwain - Query works for me, but i don't think i understand what you mean by resolving multiple levels of hierarchy - my ignorance. I always have a predefined number of levels in the hierarchy. So, I'm thinking it should always work.
If it works then it works. I think earlier posters didn't recognize that hiearchy depth was fixed in your sample data so that is why I posted what I did to show that no recursion was needed (if not additional depth applies).
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St