Several people have replied back to me about the design rule to not use business data in the primary key, which I agree with. Although I don't plan on creating a permanent STATE_SEQ sequence, since it will only be used once to populate the table.
Any other thoughts or arguments?? TIA!! -----Original Message----- Sent: Wednesday, April 17, 2002 1:19 PM To: Multiple recipients of list ORACLE-L 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Grabowy, Chris INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
