1 Patching Your Environment Using OPatch

The OPatch utility provides several commands that you can use to apply and roll back patches to Oracle software in your Oracle Fusion Middleware environment.

For more information about using OPatch commands in an Oracle Fusion Middleware environment, see the following topics:

• About OPatch
  OPatch is a Java-based utility that runs on all supported operating systems and requires installation of the Oracle Universal Installer. It is used to apply patches to Oracle software.
• Preparing to Use OPatch
  To ensure successful patching, there are several prerequisites you should complete to prepare your environment for running OPatch, such as obtaining the latest version of OPatch, obtaining required patches from My Oracle Support, and backing up the Oracle home.
• Using OPatch to Patch Oracle Fusion Middleware
  Use OPatch to perform the necessary steps for applying a patch to an Oracle home.