Re: adding a check condition

From: Rachel Carmichael <carmichr_at_hotmail.com>
Date: Tue, 13 Jun 2000 10:34:04 GMT
Message-Id: <10527.108877@fatcity.com>

yes it adds to the overhead! and it will affect performance on every insert and update. Oracle has to get the check condition from the data dictionary.

since you want this check on EVERY column, it might be faster to do it all at once in a before-insert/before-update trigger.

Rachel

>From: "Anand Raman" <araman_at_india-today.com>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: adding a check condition
>Date: Mon, 12 Jun 2000 22:57:04 -0800
>
>Hi guys
>In a database which i am desiging to prevent users from entering blank
>spaces into columns i am also
>adding a check condition like check column <> ' ' to almost every column..
>Does this add to the overhead of the table and will it have any performance
>effect ..
>Thanx
>Anand
>
>--
>Author: Anand Raman
> INET: araman_at_india-today.com
>
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Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com Received on Tue Jun 13 2000 - 05:34:04 CDT