db_migrator: Migrate other databases to PostgreSQL
Summary: db_migrator is a PostgreSQL extension that provides functions for migrating databases from other data sources to PostgreSQL.
ora_migrator: Oracle to PostgreSQL migration tools
Summary: ora_migrator is a plugin for db_migrator that uses oracle_fdw to migrate an Oracle database to PostgreSQL.
oracle_fdw: Foreign Data Wrapper for Oracle
Summary: oracle_fdw is a PostgreSQL extension that provides a Foreign Data Wrapper for easy and efficient access to Oracle databases, including pushdown of WHERE conditions and required columns as well as comprehensive EXPLAIN support.