Oracle Database 12.2 has been available for more than a year on-premises, Oracle 18c is available in the cloud already.
And there are customers live in production on Oracle Database 12.2. Real customers. Large customers. No fakes.
Hear about several customers from the financial industry including Swiss Mobiliar insurance, German Universal Investment and Danish SimCorp being live on Oracle Database 12.2. See what the Oracle Optimizer does, how you can operate Oracle even on Microsoft Windows.