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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
Ten Centuries
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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
SSC Guru
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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.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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polkadot
polkadot
Ten Centuries
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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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