OPatch in Apps

In Apps we need to use Opatch and adpatch for patching oracle apps. Why we need to use two utility to patch oracle apps.opatch is used to patch all oracle homes (for R12..10.1.2,10.1.3 and 10.2.0.2 oracle homes). Apps patches we need to use to adpatch.

How to use Opatch?

Opatch is one of the easiest and safest for patching oracle apps because you can rollback opatch if you find any issues applying the patches

1. From the opatch read me make sure which oracle home you want to patch
2. Shutdown the instance related to particular oracle home.
3. Set the oracle home in the env .Set the opatch in the path.
4. Follow the readme whether opatch needs up gradation.
5. cd to the patch area and opatch apply
6. Proceed the post install steps
7. Run cpu_root.sh to give some permissions to the executables.
8. For rollback use opath rollback –id
9. “opatch lsinventory “ is used to list all the patches
10. “opatch lsinventory –details” is used to find the version belongs to particular oracle home.

$ ORACLE_HOME/OPatch/ (Unzip Patch number)

$ cd ..

$ ./opatch apply (Patch number)/

Then system will ask for respond……. Y | N….

Give Y