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
--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Grabowy, Chris
  INET: cgrabowy_at_fcg.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Apr 17 2002 - 12:18:36 CDT