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Managing Oracle Software and Applying Patches

Oracle issues product fixes for its software called patches. When you apply the patch to your Oracle software installation, it updates the executable files, libraries, and object files in the software home directory. The patch application can also update configuration files and Oracle-supplied SQL schemas. Patches are applied by using OPatch, a utility supplied by Oracle, or Enterprise Manager.

A group of patches form a patch set. When you apply a patch set, many different files and utilities are modified. This results in a version change for your Oracle software, for example, from Oracle Database 11.2.0.1.0 to Oracle Database 11.2.0.2.0. To apply a patch set, use Oracle Universal Installer (OUI).

This section describes how to manage Oracle software and apply patches in Oracle Real Application Clusters (Oracle RAC) environments using Oracle Enterprise Manager and the OPatch utility.

This section includes the following topics:

• Configuring the Enterprise Manager Patch Interface

• Obtaining Patches

• Using DB Control to Apply Patches to a Cluster Database

• Applying Patches to Oracle Clusterware Using DB Control

• Applying Patch Sets

• Troubleshooting Patch Deployment

• Upgrading the Oracle Software

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