Chris,
I'm rather anal about using generated keys, and *I* wouldn't
even use them here. ;)
Lookup tables with information that is likely to remain static
and have an obvious key should be fine without a generated
key. ( States are a good candidate )
Jared
"Grabowy, Chris" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
04/17/02 10:18 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
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Subject: Design question...
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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