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How to report on historical movements within a changing hierarchy


How to report on historical movements within a changing hierarchy

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polkadot
polkadot
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Yes, except that my question is
Has anyone else had a similar problem and solved it with something other than slowly changing dimension?


I will create a model of this environment and use it to make concrete headway...I think at this point I need to provide some ddl for there to be a concrete way to help me! But, thanks for your ideas
Jeff Moden
Jeff Moden
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polkadot (3/22/2013)
Yes, except that my question is
Has anyone else had a similar problem and solved it with something other than slowly changing dimension?


I will create a model of this environment and use it to make concrete headway...I think at this point I need to provide some ddl for there to be a concrete way to help me! But, thanks for your ideas


No. I don't believe anyone has been able to solve the problem without SCDs other than making a copy of the whole hierarchy. Of course, that's not a bad idea either. Except for the MLM world and huge parts houses, even fairly large hierarchies don't take up much room.

I'll also say that I believe you're making a performance mistake by using recursion rather than storing a nice, tight Nested Sets hierarchy. See the article I pointed you to as to why.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

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polkadot
polkadot
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OK, will do. I've got a few more points of reference then I did when you first directed me to that article. So, I'm heading in the direction to ingest and make sense of:

"I'd like to recommend a different approach to hierarchies. Please see the following 2 articles...
http://www.sqlservercentral.com/articles/Hierarchy/94040/
http://www.sqlservercentral.com/articles/T-SQL/94570/"
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