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Message Posted: Mon, 26 Sep 2005 @ 11:04:41 GMT


     
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Subj:   Re: Design Considerations for FS-LDM/3NF model
 
From:   Dieter Noeth

Rishi Agarwal wrote:

  I am working on a migration project where the existing denormalized data model will be converted to the model based on Teradata FS-LDM. On what basis primary index is created on a table in 3NF modelling. Is it a good idea to go for UPI on PK columns. UPI will result in good performance while loading the data, but this might have impact on access. Is there any standard/guidelines available for designing the indexes on FS-LDM tables.  


Regardless of your business a PI is chosen based on access/joins/distibution and in many cases this results in NUPIs instead of UPIs.

Check the Teradata Database Design manual for all the details...


Dieter



     
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