douwen4125 2009-11-06 13:21
浏览 44

如何从MySQL数据库中选择用户特定信息?

I was wondering how can I have my users pick their favorite food from a category of foods in my MySQL database.

Will I need two different tables? If so what will my second table look like?

Here is my MySQL food table structure.

id | parent_id | food | url
  • 写回答

2条回答 默认 最新

  • duanqi5333 2009-11-06 13:23
    关注

    You'll need 3 tables in total:

    1. Food - holds food information
    2. Users - holds users information
    3. Users_Food - holds user id + food id (and maybe a ranking)

    You should probably read up on database normalization.

    评论

报告相同问题?

悬赏问题

  • ¥20 数学建模,尽量用matlab回答,论文格式
  • ¥15 昨天挂载了一下u盘,然后拔了
  • ¥30 win from 窗口最大最小化,控件放大缩小,闪烁问题
  • ¥20 易康econgnition精度验证
  • ¥15 msix packaging tool打包问题
  • ¥28 微信小程序开发页面布局没问题,真机调试的时候页面布局就乱了
  • ¥15 python的qt5界面
  • ¥15 无线电能传输系统MATLAB仿真问题
  • ¥50 如何用脚本实现输入法的热键设置
  • ¥20 我想使用一些网络协议或者部分协议也行,主要想实现类似于traceroute的一定步长内的路由拓扑功能