Oracle EBS 12.2.0 Architecture & Components

 Can we rollback the patches during ADOP phases ?

@qadarxit

if you had not run cutover phase , then you can rollback patch by issuing ADOP abort, once cutover phase done then its not possible to rollback patch,

there is chance to using flashback technique we can roll back but may loose transaction or data particular patch time

please let me know if i am not right

thanks

Kiran4617@gmail.com

If i want to apply patch...what environment to apply this patch? Run system or patch system?

@haryadisoji 

Patch is always applied on a patch file system.

Steps to apply the patch
1) Source the run file system environment
2) adop phase=prepare
3) adop phase=apply patches=patch_num
4) adop phase=finalize
5) adop phase=cutover
6) adop phase=cleanup

Until step 4 all the changes will be done to the patch file system, when cutover happens it will make patch file system as run file system and vice-versa.

I hope I have explained your questions.