标签： 十四

–1.随机数select dbms_random.value from dual;select mod(dbms_random.random, 10) from dual;–0-9随机数select abs(mod(dbms_random.random, 10)) from dual;–40-49随机数select 40 + abs(mod(dbms_random.random, 10)) from dual;–2.Xmldeclarewords c