Re: Change index from nologging to logging
- From: Hemant K Chitale <hkchital@xxxxxxxxxxxxxx>
- To: Charlotte Hammond <charlottejanehammond@xxxxxxxxx>, oracle-l@xxxxxxxxxxxxx
- Date: Wed, 25 Mar 2009 00:15:43 +0800 (SGT)
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...
See
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:5280714813869
"
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
http://hemantoracledba.blogspot.com/2008/05/append-nologging-and-indexes.html
and
//www.freelists.org/post/oracle-l/Question-about-Append-hint-in-Insert,4
Hemant K Chitale
http://hemantoracledba.blogspot.com
--
//www.freelists.org/webpage/oracle-l
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