--listar los nombres de paises por cada continenteset
serveroutput ondeclare cursor region_cursor is select
r.region_name, c.country_name from regions r join countries c on
r.region_id = c.region_id order by region_name, country_name;
v_region regions.region_name%type; v_country
countries.country_name%type;begin for v_rec in region_cursor loop
dbms_output.put_line('La region: ' || v_rec.region_name || ' el
pa?s: ' || v_rec.country_name); end loop;end;/
