怎样查询所有表并按发表时间排序?
例如我做了一个论坛,每个栏目的帖子分别放在单独的表里,我在硬件栏目、软件栏目、编程栏目都分别发了帖子,
现在进入个人中心,要显示出我所有发的贴子,并按发布时间排序,这个怎么做啊?求教啊!
回复讨论(解决方案)
每一个表里都有一个记录发贴人的字段,user,谁发的帖子这个字段里就是谁的用户名
union 数据表。
设计栏目表和帖子表,帖子表关联栏目表,取所有就是取出栏目表所有的子类和父类,以及关联的帖子内容,主要看你表怎么设计表,,,
弄个用户与发贴的关系表,把要查的东西都记录进去,然后就查关系表就OK了
linux_PHP_说的我完全听不懂
用union吧。貌似你的表设计就是有问题的。

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