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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Primary key type selection
Hi,
The first advantage is the space saving. A number field takes less no. of bytes than a varchar2 field. This decrease in storage may positively impact performance...
Regards
Rajagopal Venkataramany
----Original Message Follows----
From: Alex Hillman <alex_hillman_at_physia.com>
Reply-To: ORACLE-L_at_fatcity.com
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Subject: Primary key type selection
Date: Sun, 14 May 2000 10:54:12 -0800
Is there any advantages and disadvantages (performance? , ...) between NUMBER and VARCHAR2 for primary key column?
Alex Hillman
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