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Home -> Community -> Mailing Lists -> Oracle-L -> RE: artificial values vs null
I love that solution! can our companies work a trade - you for one of our
seasoned DWHers? serves me right for not foresaking sleep in favor of
reading Kimball when i took this assignment ;)
we use a surrogate key on all dimensions except time. silly us.
thanks!
>
> We use a surrogate key (integer) for the key of the time
> (date) dimension in
> our datamart - saves space.In theory we we can distinguish
> between "date to
> be determined", "date not applicable" (see the datawarehouse toolkit -
> kimball 2nd ed). The key is is never null (but the date is).
>
>
> chaim
> http://www.learntorah.net
>
>
>
> -----Original Message-----
> From: STEVE OLLIG [mailto:sollig_at_lifetouch.com]
> Sent: Friday, September 24, 2004 9:45 AM
> To: oracle-l_at_freelists.org
> Subject: RE: artificial values vs null
>
>
> I'm not a NULLophobe (one who fears NULLs)
-- http://www.freelists.org/webpage/oracle-lReceived on Fri Sep 24 2004 - 09:15:50 CDT
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