Oracle PLSQL Demo - 13.游标的各种属性[Found NotFound ISOpen RowCount CURSOR]

declare

    r_emp scott.emp%rowtype;

    cursor cur_emp is

        select t.* from scott.emp t;



begin



    open cur_emp;



    if cur_emp%isopen then

        dbms_output.put_line('is open...');

    end if;



    loop

        fetch cur_emp

            into r_emp;

    

        if cur_emp%found then

            dbms_output.put_line('found...');

        end if;

    

        if cur_emp%notfound then

            dbms_output.put_line('not found...');

        end if;

    

        exit when cur_emp%notfound;

    

        dbms_output.put_line(cur_emp%rowcount || ' -> ' || r_emp.empno ||

                             '   ' || r_emp.sal);

    

    end loop;



    close cur_emp;



end;