https://www.theregister.co.uk/2018/05/31/rise_of_the_open_source_data_strategies/

Comment Oracle is industry’s single largest database vandor. That was great during the days before cloud and open source. Now, however, the on-prem RDBMS giant faces a challenge – a challenge compunded by cloud. According to Gartner, Oracle owns a tiny sliver of the cloud infrastructure market – 0.3 per cent. But that tiny figure doesn’t quite explain how this also hurts Oracle’s database business.

A developer’s first decision is a cloud platform. The database they elect to use then follows from the options made available by that cloud platform. By making it cost prohibitive to run Oracle DB on the public clouds that developers actually use - AWS, Microsoft Azure, and Google Cloud - Oracle has tied its database future to the mast of its sinking cloud ship, with open source databases reaping the benefits of its myopic strategy.