EBS Upgrade from 12.1.3 to 12.2.5

[karthikmca.bhc]

Hi Erman,

Please provide me the actual path to upgrade my existing ebs to latest version.

Source:
OS : OEL 6.5
EBS Application : 12.1.3
Database : 12.1.0.1

Target (needs upgrade):
OS : OEL 6.5
EBS Application : 12.2.5
Database : 12.1.0.2


Do I have to upgrade my existing database which is 12.1.0.1 to 12.1.0.2 and then have to upgrade my EBS from 12.1.3 to 12.2.5?

Is it must that I need to upgrade my existing database to 12.1.0.2 in order to upgrade my ebs which runs on 12.1.3 to 12.2.5?

Please give me the flow to my clear understanding.

Thanks.
Karthik

[ErmanArslansOracleBlog]

Database upgrade is not a "must"
EBS 12.2 supports your current db version.. So, in your case; it is not required to upgrade the database as a prepreq for this EBS upgrade. But if you want to upgrade your database as a part of this EBS upgrade, then go ahaed and upgrade your database as well.

You can do that db upgrade, before upgrading your EBS.. (EBS 12.1 is certified with Oracle Database 12.1.0.2)

As for the EBS upgrade, here are the general steps;


Phase 1   (this is optional in your case..)

1. Upgrade the database on the existing EBS 12.1: apps DBA team
2. Execute a functional test: EBS functional team

Phase 2
3. Install all application pre-upgrade patches: apps DBA team
4. Verify the instance: EBS functional team

Phase 3
5. Execute all functional pre-upgrade tasks including customizations: functional team
6. Perform a full system backup: System and apps DBA team

Phase 4
7. Apply localization and 12.2 pre-upgrade patches: apps DBA team
8. Upgrade to 12.2.0: apps DBA team
9. Enable online patching: apps DBA team
10. Apply tech stack patches: apps DBA team
11. Upgrade to 12.2.4/12.2.5: apps DBA team
12. Perform all post-upgrade tasks: apps DBA and functional teams
13. Application function test cases: core business users

[karthikmca.bhc]

Thanks  a lot for the detailed explanation on  the flow Erman.

Well explanation! Much appreciated.

Thanks.
Karthik