2019年9月12日
sql删除重复数据
摘要： DELETE FROM city_info WHERE 1=1 AND admin_id IN ( SELECT * from ( SELECT admin_id FROM city_info GROUP BY admin_id HAVING COUNT(admin_id)>1 ) as A) AN 阅读全文
posted @ 2019-09-12 11:43 刘欣欣 阅读(161) 评论(0) 推荐(0) 编辑