From AWS to Google Cloud, the major cloud providers offer “fully managed” database services and the ability to modify or scale vertically a production database with the click of a button. From sharding to backups, from provisioning to monitoring, the talk will cover scenarios where a “modify” button or an automatic scaling recipe can be very tempting but can backfire with unintended consequences. Showing examples where holding your nerve and doing nothing would be a better approach, we will discuss the operational costs of running relational databases on the cloud: can serverless databases address those issues?