We are in the process of testing Oracle To Postgres Migration Tool. Looks like This tool can migrate only to EDB but not to Basic Postgres DB. Is there any other version for Migrate to PostgreSQL 11 or 12 from Oracle? We are not keen on EDB at this stage. ---Chakpam
PostgreSQL still have lots of features which are not alligned with Oracle. And then there are several Oracle's propriatary stuff which needs to be migrated manually. Since you have already tried the migration tool you must have already seen the differences and the report which gives you the incompatabilities.
Even if you are not interested in EDB Advanced Server, you can still work with our professional services which can help you migrate from Oracle to PostgreSQL. You can reach out to us via our enquiry form: https://www.enterprisedb.com/general-inquiry-form
Or you can drop an email to email@example.com and we can help you connect with the right team.