RE: Nologging and redo generation

From: Jacques Kilchoer <Jacques.Kilchoer_at_quest.com>
Date: Fri, 16 Aug 2002 09:43:28 -0800
Message-ID: <F001.004B7EC7.20020816094328@fatcity.com>

> -----Original Message-----
> From: Smith, Ron L. [mailto:rlsmith_at_kmg.com]
>
> Can I use the nologging option on simple inert and deletes to
> eliminate
> rollback problems and redo generation?

Which version of Oracle?
>From Oracle8i Concepts

Release 2 (8.1.6)
Part Number A76965-01
Chapter 22 Direct-Load INSERT

---

... the following operations can make use of no-logging mode: direct load (SQL*Loader)
direct-load INSERT
CREATE TABLE ... AS SELECT
CREATE INDEX

ALTER TABLE ... MOVE PARTITION 
ALTER TABLE ... SPLIT PARTITION 
ALTER INDEX ... SPLIT PARTITION 
ALTER INDEX ... REBUILD 
ALTER INDEX ... REBUILD PARTITION 

INSERT, UPDATE, and DELETE on LOBs in NOCACHE NOLOGGING mode stored out of line
All of these SQL statements can be parallelized. They can execute in logging or no-logging mode for both serial and parallel execution. Other SQL statements are unaffected by the NOLOGGING attribute of the schema object. For example, the following SQL statements are unaffected by NOLOGGING mode: UPDATE and DELETE (except on some LOBs, as noted above), conventional path INSERT, and various DDL statements not listed above.

---

> Ron S.
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Smith, Ron L.
> INET: rlsmith_at_kmg.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Jacques Kilchoer
  INET: Jacques.Kilchoer_at_quest.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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Received on Fri Aug 16 2002 - 12:43:28 CDT