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RE: Single Code Table or Separate Code tables dilemma

From: Daniel Harron <daniel.harron_at_ip-soft.net>
Date: Wed, 21 Mar 2001 18:55:11 -0800
Message-ID: <F001.002D4402.20010321182025@fatcity.com>

Check "The Data Warehouse Lifecycle Toolkit" by Ralph Kimball for the definitive answer.

-Daniel

-----Original Message-----

Sent: Wednesday, March 21, 2001 7:32 PM
To: Oracledba (E-mail); ORACLE-L (E-mail)

Guys,

We r working on a Datawarehouse solution.

Our Duhvelopers want to merge all code tables into a single table by adding a codetype column.

with reference to this, i came across this article from Steve's site http://www.ixora.com.au/tips/design/meta-data.htm

i want to put them into different individual code tables instead of a single table, for the foll reasons.

  1. specific attributes for a particular code type is logically and physically seperated from other code types.
  2. a table lock affects only the concerned code table
  3. granular control over the individual code table

i am short of arguments

wld be grateful, if ull can advise me which would be better from performance perspective.

-Mandar



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Author: Daniel Harron
  INET: daniel.harron_at_ip-soft.net

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