RE: Primary key type selection

From: <Colin.Shaw_at_phs.com>
Date: Mon, 15 May 2000 20:10:58 -0700
Message-Id: <10498.105704@fatcity.com>

>A number field takes less no. of bytes than a varchar2 field.

Not necessarily. A number field occupies a variable number of bytes, depending on its magnitude and number of digits.

Colin.

-----Original Message-----
From: Rajagopal Venkataramany [mailto:rajagopalvr_at_hotmail.com] Sent: Sunday, May 14, 2000 9:14 PM
To: Multiple recipients of list ORACLE-L Subject: 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----
Reply-To: ORACLE-L_at_fatcity.com
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> 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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-- 
Author: Rajagopal Venkataramany
  INET: rajagopalvr_at_hotmail.com

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Received on Mon May 15 2000 - 22:10:58 CDT