We are upgrading R11 to R12.1.3. Now the main upgrade driver for american and NLS
completed. now we need to upgrade to R12.1.3 , can I upgrade to 12.1.3 and configure
server process (Configure and start server processes (required)) or shall I do it
now after upgrade to 12..1 ?
You should run Rapid Install to configure and start the application processes directly after 12.1.1 upgrade and before starting 12.1.3 upgrade -- http://docs.oracle.com/cd/E18727_01/doc.121/e16342/T527285T527419.htm#T527422
Once you complete all the steps in the 12.1.1 upgrade manual you can proceed with 12.1.3 upgrade.