SQL Server License Migration We need to move our SQL Server 2016 standard License. Our plan is to install SQL Server on the new box with the same license key , test the application / databases and then delete the old SQL server after few days
Here is my question can the migration be done in parallel without uninstalling the old server  or we have to uninstall the old SQL server first then install the SQL server with the same key on another box.
It is possible but you will have two SQL server in place with only half licenses needed.
More appropriate would be to use an evalutation license (180 days) and the upgrade it to the proper full licence.
To do this use the proper DVD/ISO, Launch SQL Server &quot;setup.exe&quot;, select maintenance tab and select edition upgrade.