Discuz!X3.4本地附件全部修改为远程附件的方法
进行操作前，请备份数据库
一、本地转到远程1、论坛后台–全局–上传设置–启用远程附件2、将本地附件目录data/attachment里面的文件夹移动到远程服务器上3、数据库执行sql语句
论坛的（where remote=0表示本地，where remote=1表示远程， pre_表示数据库表前缀）
update pre_forum_attachment_0 set remote=1 where remote=0; update pre_forum_attachment_1 set remote=1 where remote=0; update pre_forum_attachment_2 set remote=1 where remote=0; update pre_forum_attachment_3 set remote=1 where remote=0; update pre_forum_attachment_4 set remote=1 where remote=0; update pre_forum_attachment_5 set remote=1 where remote=0; update pre_forum_attachment_6 set remote=1 where remote=0; update pre_forum_attachment_7 set remote=1 where remote=0; update pre_forum_attachment_8 set remote=1 where remote=0; update pre_forum_attachment_9 set remote=1 where remote=0;门户的
update pre_portal_article_title set remote=1 where remote=0; update pre_portal_attachment set remote=1 where remote=0; update pre_portal_topic_pic set remote=1 where remote=0;相册的{相册表中的remote取值还有一种情况为remote=2(论坛附件图片保存到相册)} update pre_home_pic set remote=remote+1;二、远程转到本地后台关闭远程附件设置，将附件移动到本地服务器的 data/attachment目录后执行sql即可（where remote=0表示本地，where remote=1表示远程， pre_表示数据库表前缀） update pre_forum_attachment_0 set remote=0 where remote=1; update pre_forum_attachment_1 set remote=0 where remote=1; update pre_forum_attachment_2 set remote=0 where remote=1; update pre_forum_attachment_3 set remote=0 where remote=1; update pre_forum_attachment_4 set remote=0 where remote=1; update pre_forum_attachment_5 set remote=0 where remote=1; update pre_forum_attachment_6 set remote=0 where remote=1; update pre_forum_attachment_7 set remote=0 where remote=1; update pre_forum_attachment_8 set remote=0 where remote=1; update pre_forum_attachment_9 set remote=0 where remote=1; update pre_portal_article_title set remote=0 where remote=1; update pre_portal_attachment set remote=0 where remote=1; update pre_portal_topic_pic set remote=0 where remote=1; update pre_home_pic set remote=remote-1;
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