RE: How to re-arrange the nullable columns

From: Post, Ethan <epost_at_kcc.com>
Date: Tue, 12 Jun 2001 09:18:04 -0700
Message-ID: <F001.00325A2F.20010612083056@fatcity.com>

Actually I think Oracle recommends that NULL columns should be placed at the end of the row for optimal storage of the row in the block.

Ethan Post

-----Original Message-----
Sent: Tuesday, June 12, 2001 8:01 AM
To: Multiple recipients of list ORACLE-L

It makes no difference in performance where the not null columns are placed. Why do you want to go to the headache of modifying the table structure for something so trivial?

>>> NIRMALK_at_qtel.com.qa 06/12/01 08:45AM >>>
Hi DBA's,

Greetings...

In some of application tables, i found not null columns are appeared at the last.

So, how can i re-arrange by the way i can make the not null columns are in the earliest of the table.

Is the only way to re-create the tables accordingly, or any other best methods are there?.

Thanks.

Regards,
Nirmal.

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Author: Post, Ethan
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Received on Tue Jun 12 2001 - 11:18:04 CDT