Discuz查询内容的方法，表结构

zhgc

逻辑方法：

任意找到主题：比如：mysql show命令集合

在SQL文档中检索出现有三处

定位到每处后，再反向搜索insert  into `dz这个字符串，得到对应的表名：



insert  into `dz_forum_rsscache`(`lastupdate`,`fid`,`tid`,`dateline`,`forum`,`author`,`subject`,`description`,`guidetype`)
(1568998765,89,345,1568384476,'Mysql','zhgc','mysql show命令集合','mysql show命令集合','')


insert  into `dz_forum_thread`(`tid`,`fid`,`posttableid`,`typeid`,`sortid`,`readperm`,`price`,`author`,`authorid`,`subject`,`dateline`,`lastpost`,`lastposter`,`views`,`replies`,`displayorder`,`highlight`,`digest`,`rate`,`special`,`attachment`,`moderated`,`closed`,`stickreply`,`recommends`,`recommend_add`,`recommend_sub`,`heats`,`status`,`isgroup`,`favtimes`,`sharetimes`,`stamp`,`icon`,`pushedaid`,`cover`,`replycredit`,`relatebytag`,`maxposition`,`bgcolor`,`comments`,`hidden`)
(345,89,0,0,0,0,0,'zhgc',6,'mysql show命令集合',1568384476,1568384476,'zhgc',1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32,0,0,0,-1,-1,0,0,0,'0',0,'',0,0)


insert  into `dz_forum_post`(`pid`,`fid`,`tid`,`first`,`author`,`authorid`,`subject`,`dateline`,`message`,`useip`,`port`,`invisible`,`anonymous`,`usesig`,`htmlon`,`bbcodeoff`,`smileyoff`,`parseurloff`,`attachment`,`rate`,`ratetimes`,`status`,`tags`,`comment`,`replycredit`,`position`)
(520,89,345,1,'zhgc',6,'mysql show命令集合',1568384476,'[i=s] 本帖最后由 zhgc 于 2019-9-13 22:36 编辑 ','36.153.62.153',41280,0,0,1,0,0,-1,0,0,0,0,0,'',0,0,1)

zhgc

例如查询内容有出现master-data的主题：

1. select * from `dz_forum_thread` where dateline in (
   
2. select dateline from dz_forum_post where message like '%master-data%')

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