oracle 非for循环的动态循环语句.
针对动态语句有时候需要动态判断语句

set serveroutput on size 800000;declare   i_l_id number := 0;  cur_pocon_prov_id sys_refcursor;begin    open cur_pocon_prov_id for 'select aaa from t_aaa ';    loop                 fetch cur_pocon_prov_id into i_l_id;                 exit when cur_pocon_prov_id%notfound;                Dbms_Output.put_line(i_l_id);                                     end loop;     close cur_pocon_prov_id;end;/