That's completely untrue and glosses over the very real costs of transaction management in such an environment.
Using a shared database allows you to punt a lot of that complexity to a system that's been specifically designed for it, and working well for probably 20+ years.
Too many people think microservices don't have their own, severe, downsides. The likes of netflix, google, et al, can afford to pay people whose entire job is to manage the complexities of these approaches that flat don't exist in other scenarios.
But it's a hell of a lot simpler to use a single database if you can get away with it.
Using a shared database allows you to punt a lot of that complexity to a system that's been specifically designed for it, and working well for probably 20+ years.
Too many people think microservices don't have their own, severe, downsides. The likes of netflix, google, et al, can afford to pay people whose entire job is to manage the complexities of these approaches that flat don't exist in other scenarios.
But it's a hell of a lot simpler to use a single database if you can get away with it.