And it only costs 75k a seat per year per developer, with free bi yearly license compliance audits, a million in ops and hardware to get near prod and all the docu is paywalled. What a deal!
A client had a DB hosted by Oracle. The client was doing most of their compute on AWS, and wanted to have a synchronised copy made available to them on AWS. Oracle quoted them a cool $600k/year to operate that copy, with a 3 year contract.
Client of mine wanted to shift a rac cluster from some aging sparc gear into a VMware or openstack or whatever farm they had on premise; oracle demanded they pay CPU licenses for every single CPU in the cluster as each one could “potentially” run the oracle database, quoted them seven figures.
Postgres doesn't even hold a candle to the OLTP performance that Oracle is capable of. It is probably decades ahead of Postgres in terms of technology. Oracle had multi-instance capability 22 years ago. Robust multi-instance support still seems to elude Postgres. Postgres high availability and failover capabilities are laughable.
Sure, Postgres is much easier to setup and tune (because it does much less compared to Oracle anyway), but it's not going to dethrone Oracle anytime soon when it comes to powering the most demanding OLTP workloads (like stock exchanges and telecom) out there.
Oracle database has had a MongoDB compatible API for a few years now.