Resend : Datawarehouse datamodeling : 3 questions

From: paquette stephane <stephane_paquette_at_yahoo.com>
Date: Wed, 28 Feb 2001 02:44:39 -0800
Message-ID: <F001.002BF5AB.20010228020750@fatcity.com>

I had no feedback on this one.
There must be some datawarehousers on this list.

Hi,

I'm currently testing the Oracle 8i new
datawarehousing functionnalities. Are you using materialised view for aggregate dimension ?

The second question is what do you do with yes/no flags. They can be put in the fact table or they can be put in a profile dimension. Is there another way ?

The third question is do you restrained the numeric fields in the DW. I've used number in the past. The analyst here has put number(15,2). For me this is nonsense. The DW do not care if the measure is 232000 or 0.56. If they are quality filters they should be in the ETL processes not in the database structure. Do you agree that all numeric fiels should be number and not number (x,y) ?

TIA

Stephane Paquette
DBA Oracle
stephane_paquette_at_yahoo.com

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