Microsoft SQL Server 2019 Enterprise 2 Core - Open License is a "brand" that you will see almost everywhere. Its products has matured over the years, yet can feel familiar if you used other open source entries that offer the same stuff. There is a lot of documentation and support for any of your SQL needs online. With the help of a big community and listening to its needs, it thrived to create a well balanced tool for all your administrative, storage, and analytic needs. A lot of the stuff you had to before as manual work in Microsoft SQL Server 5 years ago can be done now very simply these days with a simple command/functions/tools/etc. Another important facet of this tool is that it comes bundled with other goodies, such as SSRS (SQL Service Reporting Services), which I heavily used a lot. In addition, each new iteration of the product, they add new features, to make your work be more productive. For these reasons, there is a lot of space in the variety and improvements you can do on your back end every day.