It's still used in a lot of places because either some bought in ERP system requires it, or because internal software was developed on it WAY back when, when ei

It's still used in a lot of places because either some bought in ERP system requires it, or because internal software was developed on it WAY back when, when either Postgres didn't exist, or didn't have as many features and no companies providing paid support. They now have a problem - and it would probably cost more than the yearly cost of Oracle to migrate.