Re: Change index from nologging to logging

From: Hemant K Chitale <>
Date: Wed, 25 Mar 2009 00:15:43 +0800 (SGT)
Message-ID: <>

At 05:02 AM Tuesday, Charlotte Hammond wrote: <sorry, the text of your email has been snipped by the spam filter, I got only your email header !, but retrieving your email from the oracle-l archives>

In the manual (SQL Reference 10g) it says:

Specify whether the creation of the
index will be logged (LOGGING) or not logged (NOLOGGING) in the redo log file. This setting also determines whether subsequent Direct Loader (SQL*Loader) and direct-path INSERT operations against the index are logged or not logged. LOGGING is the default.Are you not counting direct load/insert as DML, or do you believe this statement is wrong?
I'd like to test it but so busy just now...


Followup August 29, 2008 - 11pm US/Eastern: indexes always, always, always generate redo during any insert, any - any - any insert.

We were talking only about tables.

insert /*+ append */ - since it is done in bulk will MINIZE the redo, but it'll generate redo for the indexes *always* if the index is maintained.

Also see


Hemant K Chitale

Received on Tue Mar 24 2009 - 11:15:43 CDT

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