PL/SQL个人学习笔记（二）

declare

cursor s is

select version from city_server t;

s_ city_server.version%type;

begin

open s;

fetch s into s_;

if s_>2

then

DBMS_OUTPUT.put_line(s_);

end if;

close s;

end;


declare

cursor s is

select version from city_server t;

s_ city_server.version%type;

begin

open s;

loop

fetch s into s_;

exit when s%notfound;

DBMS_OUTPUT.put_line(s_);

end loop;

close s;

end;