RE: Which method is more efficient

From: <Jared.Still_at_radisys.com>
Date: Thu, 29 May 2003 10:09:46 -0800
Message-ID: <F001.005A5D5B.20030529100946@fatcity.com>

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>
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        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 ]

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