随笔分类 -  mysql

mysql 删除重复行
摘要：1、根据单行判断重复 （1）查找重复项 SELECT * FROM graph_disease_corresponding WHERE diag_pingan IN ( SELECT diag_pingan FROM `graph_disease_corresponding` GROUP BY di 阅读全文
posted @ 2020-12-09 14:51 kwz 阅读(303) 评论(0) 推荐(0)