If you??™re running a website in front of your
database that sells widgets to customers all over the world, 24/7, and the cost of being
down is six figures a minute, then the investment in an Oracle Real Applications Cluster
(RAC) environment along with Data Guard for disaster recovery is probably cost-justified.
Familiarity with a couple key websites is a must. Oracle Technology Network (OTN), at
http://otn.oracle.com, has a wealth of information, including white papers, free tools,
sample code, and the online version of Oracle Magazine. There is no charge for using
OTN, other than registering on the site.
Purchasing a license for Oracle database software is a good start, but an Oracle support contract
with web support is the key to a successful installation and deployment. Using Oracle??™s Metalink
(http://metalink.oracle.com) means you might never have to leave the friendly confines of your
web browser to keep your database up and running. Through Metalink, you can submit a support
request, search through other support requests, download patches, download white papers, and
search the bug database.
A successful initial software installation is the first step. The database environment grows and
evolves with every new business requirement and application that comes your way. For more
information on how to successfully plan the implementation of a large database development
project, see Chapter 5.
Overview of Licensing and Installation Options
Regardless of the software and hardware platform you??™re installing Oracle on, the types of
installations you can perform are the same:
Enterprise Edition This is the most feature-laden and extensible version of the Oracle
database.
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