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You're reading from  Oracle Database XE 11gR2 Jump Start Guide

Product typeBook
Published inJul 2012
Reading LevelIntermediate
PublisherPackt
ISBN-139781849686747
Edition1st Edition
Languages
Java
Tools
Oracle Database
Concepts
Database Programming
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Author (1)
Asif Momen
Asif Momen
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Asif Momen

Asif Momen has been working with Oracle technologies for over 12 years and has expertise in Database Architecture, Performance Tuning, and High Availability. He has a Master's degree in Software Systems from Birla Institute of Technology & Science (BITS), Pilani. Asif is honored by the prestigious Oracle ACE award from Oracle Technology Network. He has the following certifications: OCP 11g DBA, OCP 9i Forms Developer and is an Oracle Certified Expert in RAC 10g. Asif is a presenter for conferences like Oracle OpenWorld-2010, All India Oracle User Group (AIOUG), and Brain Surface. In addition, he is the Member of Editorial Board of "Oracle Connect"the quarterly publication of AIOUG and Select magazine of the United Kingdom Oracle User Group (UKOUG) His articles have also appeared in Oracle Support - Customer Knowledge Exchange . His particular interests are Database & SQL tuning, Oracle RAC and Backup & Recovery. He posts his ideas and opinions on The Momen Blog (http://momendba.blogspot.com). Asif can be reached at asif.momen@gmail.com.
Read more about Asif Momen

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The ARCHIVELOG mode

Databases can be run in one of two modes — the ARCHIVELOG mode or the NOARCHIVELOG mode. In NOARCHVIELOG mode, the redo log files are reused by the Oracle database engine without being copied to an offline location. In ARCHIVELOG mode, Oracle copies the filled online redo log files to one or more offline locations before they are reused. These redo log files, which are saved offline, are called archived redo log files. The ARCH process is responsible for archiving when automatic archiving is enabled. You use the archived redo log files to recover a database and update a standby database.

The ARCHIVELOG mode is very important for mission-critical production databases. Databases can be backed up in the open mode when running in the ARCHIVELOG mode. Also, the ARCHIVELOG mode provides point-in-time recovery. It is generally not necessary for test and development databases.

Placing a database in the ARCHIVELOG mode

To place a database in the ARCHIVELOG mode, perform the following...

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Oracle Database XE 11gR2 Jump Start Guide
Published in: Jul 2012Publisher: PacktISBN-13: 9781849686747
© 2012 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Asif Momen

Asif Momen has been working with Oracle technologies for over 12 years and has expertise in Database Architecture, Performance Tuning, and High Availability. He has a Master's degree in Software Systems from Birla Institute of Technology & Science (BITS), Pilani. Asif is honored by the prestigious Oracle ACE award from Oracle Technology Network. He has the following certifications: OCP 11g DBA, OCP 9i Forms Developer and is an Oracle Certified Expert in RAC 10g. Asif is a presenter for conferences like Oracle OpenWorld-2010, All India Oracle User Group (AIOUG), and Brain Surface. In addition, he is the Member of Editorial Board of "Oracle Connect"the quarterly publication of AIOUG and Select magazine of the United Kingdom Oracle User Group (UKOUG) His articles have also appeared in Oracle Support - Customer Knowledge Exchange . His particular interests are Database & SQL tuning, Oracle RAC and Backup & Recovery. He posts his ideas and opinions on The Momen Blog (http://momendba.blogspot.com). Asif can be reached at asif.momen@gmail.com.
Read more about Asif Momen

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