So far, you have seen how the most important advanced SQL features can be ported or used in PostgreSQL. After this introduction, it is time to take a look at migrating Oracle database systems in particular.
These days, migrating from Oracle to PostgreSQL has become really popular due to Oracle's new license and business policy. Around the world, people are moving away from Oracle and adopting PostgreSQL. To help people make Oracle a thing of the past, I have included a special section here. Many people are already moving to PostgreSQL to seriously reduce license costs.