RESTORE DATABASE nwind_new FROM DISK = 'c:\backups\northwind\nwind.bak'
WITH
MOVE 'northwind' TO 'd:\Program Files\Microsoft SQL
Server\Data\nwind_new.mdf'
MOVE 'northwind_log' TO 'd:\Program Files\Microsoft SQL
Server\Data\nwind_new_log.ldf'
http://technet.microsoft.com/es-es/security/cc184924(en-us).aspx