orafce is an extension which implements some Oracle functions and datatypes in PostgreSQL to assist with migration. It also provides some Oracle packages as PL/pgSQL functions and an implementation of the DUAL table.
Notes
This extension installs some functions in the pg_catalog schema.
References
- GitHub: orafce
Useful links
- Migrating from Oracle to PostgreSQL: Tips and Tricks - article from Crunchy Data, January 2020