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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Design question...
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
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
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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).
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 - 13:33:30 CDT
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