Last time I looked around it seemed a lot of "engineering focused companies" like tech startups were using garbage like MongoDB, the famously lossy database. I

Last time I looked around it seemed a lot of "engineering focused companies" like tech startups were using garbage like MongoDB, the famously lossy database. I wouldn't assume that big companies are automatically incompetent and "tech focused companies" ignore Oracle for good reasons. It can as well be just fashion and/or groupthink and/or cost reasons.