How to fetch the desired record in sql

Hello ,

I have a table named st_comments and it returned follwoing rows as :

      OBJECT_ID   VERS_NUM   COMMENTS   RESULT_VERSION
1     11007          0              <CLOB>                    1
2      11007         1               <CLOB>                   1
3      11007         2               <CLOB>                   1
4      11007         0               <CLOB>                   2
5      11007         1              <CLOB>                    2

I need a query which would fetch me only the 5th record which is the latest in the list above.

Any idea?

Please help, it's urgent.

Regards,

saurav