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You're reading from  Oracle Database 11g : Underground Advice for Database Administrators

Product typeBook
Published inApr 2010
PublisherPackt
ISBN-139781849680004
Edition1st Edition
Tools
Oracle Database
Concepts
Database Administration
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Author (1)
April Sims
April Sims
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April Sims

April Sims is currently the Database Administrator at Southern Utah University and an Oracle Certified Professional: 8i, 9i, and 10g with a master's degree in Business Administration from the University of Texas at Dallas. Involved as a volunteer with the Independent Oracle Users Group for over 7 years, April is currently a Contributing Editor for the IOUG "SELECT" Journal. April is an annual presenter at Oracle OpenWorld, IOUG COLLABORATE, and numerous regional Oracle-related conferences.
Read more about April Sims

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Adapting to constant change

You can have more than one ORACLE_HOME for every node, primarily for migration projects that will be spread over an extended period of time. There is an inherent risk in running multiple ORACLE_HOMES, in that you may mistakenly use the wrong ones. It is my personal recommendation that the ongoing risk is worth it when using the Step-Ordered Approach to Migrating, because it reduces the overall downtime (see Chapter 7).

An ORACLE_HOME consists of installed binary files along with Oracle-supplied scripts. The database comprises memory structures, background processes, control files, parameter files, data files, and temporary and undo files. There are other types of ORACLE_HOME(s) that contain ORACLE installed software, as each of them is only an environmental variable pointing to a specific disk location. Other types will have other names like: CRS_HOME or AGENT_HOME that may be identified as an ORACLE_HOME in the Oracle documentation. This means you can have multiple...

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Oracle Database 11g : Underground Advice for Database Administrators
Published in: Apr 2010Publisher: PacktISBN-13: 9781849680004
© 2010 Packt Publishing Limited All Rights Reserved

Author (1)

author image
April Sims

April Sims is currently the Database Administrator at Southern Utah University and an Oracle Certified Professional: 8i, 9i, and 10g with a master's degree in Business Administration from the University of Texas at Dallas. Involved as a volunteer with the Independent Oracle Users Group for over 7 years, April is currently a Contributing Editor for the IOUG "SELECT" Journal. April is an annual presenter at Oracle OpenWorld, IOUG COLLABORATE, and numerous regional Oracle-related conferences.
Read more about April Sims

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