There are reasons for companies not wanting benchmarks public i.e. unequal or fixed results. But ultimately one can no longer be an engineer if you are excluding metrics from software for business/legal reasons.
I have had to run many systems on Oracle and the developer is not their customer, it is a painful experience in Oracle enterprise. The extent of it is they have Ask Tom fill in the gaps. Luckily most of the Oracle work was moving systems from massive Oracle setups to swifter (and hundreds of thousands of dollars cheaper) architecture on MSSQL, PostgreSQL and MySQL (until Oracle bought them) now MariaDB.
I like platforms that put the developer and their workflow as a top priority, not how many rounds of golf you play with the C level execs. Oracle would be the latter type of "enterprise" company.