Comment by mike_hearn

Big tech companies do use it. Apple was advertising for Oracle DBA roles just last month. And consider that Amazon had to staff a massive multi-year project to migrate off it to their own in-house DB, which they only did because they had become a competitor.

W.R.T. unicorn type startups; yes, my argument is that they are all wrong and should be using a different database. There's competitive advantage to be had there.