Partial backup restore of read-only file group on new database Let's say, I have a database myModel2015 that contains two file groups - Primary A and Secondary Read-Only B. Then, I am creating a partial backup of the secondary file group.

Now, let's create a new myModel database (there might be difference in the database objects in the primary file group, but the tables in the read-only file group will be the same as this in the myModel2015 database).

Is it possible to perform piecemeal restore of the Secondary Read-Only B file group but using the new database?
I think that this one covers it for you (SE Link)

He answers very succinctly, but as he says the short answer is no.   He also gives you some options that can work but none as simple as it would be if you could just restore that filegroup to a different database.