Is there something different between the 2 database objects (and connection pools) in the 2 versions? A different database type? A different connection pool? A different way to identify the database in the connection pool?
Thanks for the response.
Every thing is same in both the RPD's, database objects (and connection pools). Only difference is 11g/12C Client tools, rest all remains same.
Also if we change the Isolation level in Connection pool, for example if the Isolation level is marked as 'Dirty read' or 'Default' (Basically if we change it to something else than existing) then its getting disabled and even if we try to restore it to defaults its not working.