简化返回数据集的存储过程例子plsql调用

create or replace procedure getcur(p_rc out SYS_REFCURSOR)  
is 
begin 
open p_rc for 'select * from med_users';  
end getcur;

declare
 med_userss SYS_REFCURSOR;
 v_row acs.med_users%ROWTYPE;
begin 
getcur(med_userss);  
loop
FETCH  med_userss into v_row;
EXIT WHEN med_userss%NOTFOUND;
dbms_output.put_line(v_row.login_name);  
end loop;  
end;