set serveroutput on declare s varchar2(100); begin dbms_output.put_line(to_char(pstudenti.NrStudSectia(2))); dbms_output.put_line(to_char(pstudenti.NrStudMedia(2,7,9))); dbms_output.put_line(pstudenti.StructStud); pstudenti.NrStud(2,s); dbms_output.put_line(s); end;