

These databases will not use the new features available in the new version of SQL Server. the compatibility level of the existing databases will be still on the older version. The existing databases on the SQL Server, will not upgraded by itself. The above steps will only upgrade SQL Server, but not the database in it.

Installed DB Server: SQL Server 2016 Developer Edition.Then you have to upgrade the compatibility level of the per-existing database to the higher version.

First you have to download the higher version of SQL Server and upgrade it. In this article, I will go over the steps to upgrade SQL Server 2016 and it’s databases to a higher version (SQL Server 2017).
