>
> Thanks for the suggestion. Problem is the data is highly sensible and
> cannot go on the cloud or non trusted place
Sounds like the real question now is not how to import the data, but
how to convert the backups you have to CSV or similar?
Another idea for SQL Server is to use the bcp utility.
https://www.simple-talk.com/sql/database-administration/working-with-the-bcp-command-line-utility/