1.3 Using OPatch to Patch Oracle Fusion Middleware

Use OPatch to perform the necessary steps for applying a patch to an Oracle home.

The following topics describe how to use OPatch to patch Oracle Fusion Middleware:

• Summary of the Steps For Using OPatch in a Fusion Middleware Environment
  Applying a patch with OPatch involves a series of steps that must be performed to ensure successful patching.
• Common OPatch Commands When Patching an Oracle Fusion Middleware Oracle Home
  OPatch provides several commands that you can use to apply a patch, roll back a patch, and verify the application of patch in an Oracle home. You can use OPatch to apply and roll back a single patch or apply and roll back multiple patches.
• Examples of Applying and Rolling Back Patches Using OPatch
  After you obtain the patches required for your installation, use the appropriate OPatch commands to verify any patch prerequisites, apply a patch to an Oracle home, and if necessary, roll back the application of a patch.
• Troubleshooting a Patch by Viewing the OPatch Log File
  To understand how a patch is applied and to troubleshoot any problems with the application of a patch, you should review the log file for the OPatch session.
• Using the OPatch lsinventory Command to Verify the Patches Applied to an Oracle Home
  To verify what patches have been applied to an Oracle home, or to find out additional information about the Oracle home, use the opatch lsinventory command.
• Verifying Your Installation After Applying a Patch
  After you apply one or more patches successfully, use the WebLogic Administration Console, Fusion Middleware Control, and your organization’s application testing to verify that your system is currently running successfully.