摘要: select day ,case when month(day) != month(date_add(day,7)) then 'y' else 'n' end as is_last_week -- 是否月份最后一周 from ( select '2021-06-06' as day union a 阅读全文
posted @ 2021-07-23 10:28 chenzechao 阅读(147) 评论(0) 推荐(0)