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Re: Order rows

From: <Rachel_Carmichael_at_Sonymusic.com>
Date: Wed, 15 May 2002 07:33:26 -0800
Message-ID: <F001.004612C2.20020515073326@fatcity.com>

I suppose you can if you don't care about wasted disk space, I know everyone says "disk is cheap" but that's only until you explain to your manager that you need a 100GB disk for a 10GB (real used space) database because you are forcing order by storing each row in one block and never reusing space freed up by deleted rows :)

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|        |          kaygopal_at_yaho|
|        |          o.com        |
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|        |          05/15/2002   |
|        |          10:28 AM     |
|        |          Please       |
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  |       To:     ORACLE-L_at_fatcity.com                 |
  |       cc:     (bcc: Rachel Carmichael)             |
  |       Subject:     Re: Order rows                  |
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Rachel:

If you want to FORCE the order you can do couple of things like having a big PCTFREE (to make sure that no rows are migrated because of the updates) and small PCTUSED so that the blocks are never reused. In this case you will get the
rows in the inserted order.

ANother alternative is your method (additional column SYSDATE)

Best Regards,
K Gopalakrishnan
Bangalore, INDIA

>
>
> Do you want to physically order them or do you just want to know by time
the
> order in which they were entered.
>
> if the first, no, not that I know of. If the later, yes, add another
column
> (ins_date date) and a trigger to populate that column with sysdate when
you
> insert a row. You can then order by ins_date
>

--
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--
Author: K Gopalakrishnan
  INET: kaygopal_at_yahoo.com

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: Rachel_Carmichael_at_Sonymusic.com

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Received on Wed May 15 2002 - 10:33:26 CDT

Original text of this message

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