2020年10月28日
SQL------删除重复数据
摘要： 1 delete from ZZ1 where txt in( select txt from ZZ1 group by txt having count(txt) > 1) and ID not in(select max(ID) from ZZ1 group by txt having coun 阅读全文
posted @ 2020-10-28 10:14 法宝 阅读(78) 评论(0) 推荐(0) 编辑