Re: Additional redo for supplemental logging at table level

From: fairlie rego <>
Date: Fri, 23 Dec 2011 02:44:59 -0800 (PST)
Message-ID: <>

We were concerned about the same thing when we had to implement this for Golden Gate but the additional redo generated has been minimal. We still have some outstanding issues around DDL replication for GG.


Fairlie Rego
Senior Oracle Consultant
M: +61 402 792 405

 From: "Hameed, Amir" <> To:
Sent: Friday, 23 December 2011 4:57 AM
Subject: Additional redo for supplemental logging at table level  

I would like to know if anyone has done any testing on how much additional redo is generated if supplemental log groups are created on tables. I know that it will depend on the number of columns in a log group, column size, data type, etc., but I just want to get an idea about generally how much additional information (in terms of %age) is generated for DML statements.

Any feedback will be appreciated.

Thank you


Received on Fri Dec 23 2011 - 04:44:59 CST

Original text of this message