It used to be easy: a company developed a new application, chose a database solution, launched the new application and then tuned the chosen database solution. A team of DBAs looked at the infrastructure as well as the workload and made changes (or suggestions) as needed. The application then stayed in production for years and [&]

https://www.percona.com/blog/2019/06/05/enterprise-data-solution-maximizing-return-for-the-lowest-cost/