资料1

-- Created on 2014/8/20 

declare 

  -- Local variables here

  i integer;

begin

  i := 12;

  -- Test statements here

  DBMS_OUTPUT.put_line(i);

end;

资料2

declare 

  cursor s is 

          select * from city_app.city_server;

  s_ s%rowtype;

begin

  open s;

  fetch s into s_;

        DBMS_OUTPUT.put_line(s_.id);

  close s;

end;