write a stored procedure for following eg::

Question

i have the backend table like 

countryid  countryname  state

11india                 ap

12aus                sydny

13pak                  

so  when i give the countrynam 'pak' state column display null value but i want display some text msg instead of null pls write the program for that in stored procedure in plsql only

countryname: pak     statename:  

i want result like that countryname: pak     statename:there is not states