2020年3月19日
sql语句删除一张表中重复数据
摘要： 来自 王涛 同志的指导 DELETE FROM product WHERE searchdate IN (SELECT sd FROM (SELECT a.searchdate sd FROM product a GROUP BY a.searchdate HAVING count(a.search 阅读全文
posted @ 2020-03-19 15:55 土木转行的Genius 阅读(751) 评论(0) 推荐(0)