Hi Rableen Khurana,
Example 2 - Online tablespace restore into existing database from a tape device
db2 "restore database sample tablespace (syscatspace,
userspace1) online from /dev/rmt0 taken at 20010222151429 newlogpath
/home/db2v71/samplelogs without prompting"
See this link is usefully
Performing a Database Backup, Restore, and Rollforward
Regards,
Visu