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How much your existing Apex reports and forms are affected by an upgrade from 11i to R12 depends very much on how Apex is integrated into your e-Business Suite.
The key difference between 11i and R12 is in the infrastructure. With R12 you must use a separate web server for Apex if you are not doing this already. With a separate web server you may also need to change the way you are linking to Apex from Oracle Applications.
The Apex installation in the database will not be affected by an R12 upgrade as it is all in separate schemas. However, if your Apex applications are depended on 11i tables structures then they may be affected by the upgrade. Some Oracle Applications such as HR have very few table changes. In other areas, the table structure is so different you may want to consider re-designing the report. You may be able to avoid changing your Apex applications by creating views over the eBS tables that present the data in the way you need for your Apex application.
Hope that helps,
Thanks for the reply and giving explaination of difference between 11i and R12 upgrade.
We are not upgrading the 11i instanse to R12.
At present client has 11i and they want to implement fresh R12 on different instnase(from the scratch), so
we have following questions can you please provide your suggestions.
Oracel Application *11i* R12
Instanse Name AAA BBB
is it Upgarde? NO NO
New Implemenation No Yes
Apex Version *4.1* +4.1+
Apex Host name CCC we still don’t know it will be the same host or different
1)Can you please let us know in order to test this migration/copy from 11i to R12 (new implementation), what are all we need?
2)We have a CRP instanse with R12 installed can we ask our DBA to make this R12 CRP instanse as APEX host for our testing? I mean, can we have both APEX and R12 be on the same host? or do we need separte host for APEX, if so how we can intergrate with our R12 CRP instanse with APEX?
Once again thanks Rod.