Restore a database from a backup with more files than the target database

Hi sql-server-performance,


I have a dabase TesDatabase that have :

*** 2 filesGroupsRIMARY and FG1 and FG2.

*** the Log file :TestDatabase_log(.ldf).

***Three data files:TestDatabse of Primary,File1 of FG1,File2 of FG2.

i created a database TesDatabaseCopy:with the sql server defaults:

1-filegroup PRIMARY with its data file:TesDatabaseCopy(logical)==>TesDatabaseCopy.mdf. Log files :TesDatabaseCopy_log==>TesDatabaseCopy_log.ldf.

i backuped TestDatabase to DISK='C:TestDatabase.bak'

Oki,now i want to restore the TestDataBaseCopy from this backup.
is it possible to do this directly ?
or i should do a partial backup(of the primay file group) and after the other filesgroup added one after one?

or i should pass throu offline==>detach==>Copy==>Attach==>Online?



Thanks,

Rachid