RE: Which method is more efficient

From: Rodrigues, Bryan <BRodrigues_at_elcom.com>
Date: Thu, 29 May 2003 11:15:03 -0800
Message-ID: <F001.005A5F92.20030529111503@fatcity.com>

Jared,

That is correct the fields that are changed is known before going to this point.

Bryan

P.S. I just want to say thank you for all the responses to this question. We are still talking about the issue, but I am thankful for the input.

-----Original Message-----
Sent: Thursday, May 29, 2003 2:10 PM
To: Multiple recipients of list ORACLE-L

dunno about that. I was making the assumption that *which* columns changed was already known.

This would require testing by someone familiar with the data.

Jared

"Jamadagni, Rajendra" <Rajendra.Jamadagni_at_espn.com> Sent by: root_at_fatcity.com
 05/29/2003 10:24 AM
 Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        RE: Which method is more efficient

Jared,
Agreed, but what about the resources needs to find _which_ column changed ?? Would that offset the extra redo generated? Heck, I'd just generate the update statements based on two tables to _only_ update the changed columns. It is pretty easy, if both tables have _same_ columns ... Raj

---

---

Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !

-----Original Message-----
Sent: Wednesday, May 28, 2003 6:15 PM
To: Multiple recipients of list ORACLE-L

There are easier ways to test redo generation than mucking about with logminer.
Update only the column that changes and check redo generation: 15:06:09 rsysdevdb.radisys.com - jkstill_at_dv01 SQL> @t1 [ much stuff deleted ]

--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: Rodrigues, Bryan
  INET: BRodrigues_at_elcom.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu May 29 2003 - 14:15:03 CDT