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SQL Server 2008
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T-SQL (SS2K8)
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How to report on historical movements within...
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How to report on historical movements within a changing hierarchy
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polkadot
polkadot
Posted Friday, March 22, 2013 9:17 AM
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Group: General Forum Members
Last Login: Monday, May 13, 2013 5:00 PM
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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
Post #1434325
Jeff Moden
Jeff Moden
Posted Saturday, March 23, 2013 7:35 PM
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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 "
R
ow-
B
y-
A
gonizing-
R
ow".
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."
For better, quicker answers on T-SQL questions, click on the following...
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/
Post #1434646
polkadot
polkadot
Posted Sunday, March 24, 2013 8:46 AM
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Last Login: Monday, May 13, 2013 5:00 PM
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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/"
Post #1434675
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