九九乘法表

DECLARE
    i   NUMBER := 1;
    j   NUMBER := 1;
BEGIN
    FOR i IN 1 .. 9
    LOOP
        FOR j IN 1 .. i
        LOOP
            DBMS_OUTPUT.put (i || ' * ' || j || ' = ' || i * j || ' ');
        END LOOP;

        DBMS_OUTPUT.put_line (' ');
    END LOOP;
END;

输出结果