自动删除新闻模型重复数据且保留最后一条帝国CMS V7.0
发布时间：2022-06-29 05:31:53 所属栏目：教程 来源：互联网
导读：delete phome_ecms_news from phome_ecms_news, (select id from phome_ecms_news group by title having count(*)1 ) as t2 where phome_ecms_news.id=t2.id 执行完成以上命令,还要执行一下 下面的语句来修正 副表.delete from phome_ecms_news_index whe
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delete phome_ecms_news from phome_ecms_news, (select id from phome_ecms_news group by title having count(*)>1 ) as t2 where phome_ecms_news.id=t2.id 执行完成以上命令,还要执行一下 下面的语句来修正 副表.delete from 'phome_ecms_news_index' where id not in(select id from phome_ecms_news)//开源软件:phpfensi.com 以上命令执行完即可,也可以用以下的命令修正副表 ID 错误,用以下命令进入 PHPMYADMIN 管理多于的错误 ID:SELECT id FROM phome_ecms_news_data_1 WHERE NOT EXISTS (SELECT null FROM phome_ecms_news WHERE phome_ecms_news.id = phome_ecms_news_data_1.id); 解释： delete 表 from 表, (select id from 表 group by 重复字段名 having count(*)>1 ) as t2 where 表.id=t2.id （编辑：网站开发网_马鞍山站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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