比方说,我有一个MySQL数据库的三个表包含这样一些数据:数据表示
- Sections (which have a number, a title)
- Sub-sections (which also have a number and a title but the title is the same as the title of the next data type with is 'statements')
- Statements (which have a number, a title (the same as the title from Sub-sections)
正如你可以在上面看到,现场冠军两个表小节和陈述是相同的,他们有相同的数据。有没有更好的方法可以在我的表格中表示这一点,以便我不会有重复的数据?
感谢您的任何意见
查找正常化http://databases.about.com/od/specificproducts/a/normalization.htm – Ashley 2013-04-04 20:24:49