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" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
 05/29/2003 10:24 AM
 Please respond to ORACLE-L

 
        To:     Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
        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 
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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 - [EMAIL PROTECTED] SQL> @t1 
[  much stuff deleted  ] 

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