Export / Import a Perticular table / database in Oracle using command prompt

Export:

To export, type this command in cmd:
>> exp user/password@instant
It will show many questions, leave it with default answer using hit enter. But, there are the important question, such as:
- (2)U(sers), or (3)T(ables): (2)U >
2 : to export all database under user that mentioned above
3 : to export selected tables only. If 3 choosed, it will appear question what tables that will be exported
- Export grants (yes/no): yes > (type Y or N)
- Export table data (yes/no): yes > (type Y or N)
- Compress extents (yes/no): yes > (type Y or N)

In the rest, make sure that appear message Export terminated successfully without warnings.

Import:

To import full dmp file type this command in cmd:
>> imp user/password@instant file=emp.dmp log=imp.log full=yes

To import dept table alone type this command in cmd:
>> imp user/password@instant file=emp.dmp log=imp.log fromuser=user touser=user tables=dept

FROMUSER and TOUSER clause are optional. But in case if used, then create a user in the destination database that is mentioned in TOUSER clause then try importing the dmp file.

In the rest, make sure that appear message Export terminated successfully without warnings.