In my environment I've a VM that runs MSSQL 16 with 3 databases. My Veeam Server's MSSQL is SQL Express 2012.
What I want to achieve is restore database items like a table or record but now whole database. So that's called SQL Server Staging right? https://helpcenter.veeam.com/docs/backu ... l?ver=95u4
Everytime I tried to stage, I got this error:

Reason is obivious. Therefore I've to upgrade SQL Express 2012. But what should I do before upgrading? I've got a few questions about this process.
[*]I've backed up my Veeam configuration. But do I have to backup the Veeam database from SQL Express too?
[*]After upgrading to SQL Express 2016, are there any further things for me to do? Like editing some connection settings or Veeam database migrations etc.
[*]What will happen my currently running jobs (like a full backup job or transactional log backup jobs) during upgrade?
[*]What is the proper steps to upgrade?
[*]Is Veeam still shippingwith SQL Express 2012? If so, why?
Another problem is I've a database over 10 GB so SQL Express 2016 won't cut it. Therefore I'll upgrade to a enterprise version of SQL Server. I've all the questions above for this scenario too (except the last one of course).
Regards.