摘要: 方法一: select substr(t.user_code ,7,8)from table twhere substr(t.user_code ,7,8) < (select to_char(sysdate - interval '60' year,'yyyyMMdd') from dual) 说 阅读全文
posted @ 2019-07-05 15:00 唯一520 阅读(1020) 评论(0) 推荐(0) 编辑