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Design question...

From: Grabowy, Chris <cgrabowy_at_fcg.com>
Date: Wed, 17 Apr 2002 09:18:36 -0800
Message-ID: <F001.00446C66.20020417091836@fatcity.com>


To simplify my question, if I am creating a STATE table to hold all the states of the US, should I create it like this...

Name                                      Null?    Type
----------------------------------------- --------
----------------------------
STATE_CODE                                NOT NULL CHAR(2)         <-- PK

STATE_DESC                                NOT NULL VARCHAR2(50)

or like this...

Name                                      Null?    Type
----------------------------------------- --------
----------------------------
STATE_ID                                  NOT NULL NUMBER          <-- PK 
STATE_CODE                                NOT NULL CHAR(2)
STATE_DESC                                NOT NULL VARCHAR2(50)

I'm trying to figure out which is more efficient, STATE_CODE or STATE_ID, when doing a PK lookup, dealing with FKs, etc.

Many TIA!!!

Chris
--

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--

Author: Grabowy, Chris
  INET: cgrabowy_at_fcg.com

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