Answer»
- Login as applmgr and set the environment. For the Windows environment also, you have to test that CLASSPATH contains %JAVA_TOP%, %JAVA_TOP%loadjava.zip
- Create a PATCH_TOP directory in the Base Directory (at the same level as APPL_TOP, COMMON_TOP, etc: this is just a recommendation) for the patches which will be downloaded. If this directory exists, this step can be skipped. An OS environment variable could be created for this directory. This will be done only one time, when the first patch will be applied.
- DOWNLOAD the patch you want to apply in PATCH_TOP directory and unzip the patch.
- Understand the README.txt file and complete the prerequisite or manual steps. Here, if there are any patched to apply as pre-requisite, in general, is created a document with all the steps involving in the PATCHING process and the pre-requisite patches will be applied before the initial patch.
- Ensure that the PLATFORM variable environment (under UNIX, Linux, Solaris) is set
- Shut down APPS services. The database services and the listener must be up and running.
- Enable Maintenance Mode.
- Start AutoPatch in interactive mode. This task must be done from the directory where the patch driver is/was unzipped. Also, respond to the adpatch prompts. If there are more drivers to apply (there is no unified drive: there could be a database (d), copy (c) or generate (g) driver) restart the adpatch and apply the other patches.
- Review the log files. By DEFAULT, the LOCATION is $APPL_TOP/admin//log and the file is adpatch.log.
- Review the customizations (if any). If a customization was modified by this patch, the customization must be applied again.
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