表的规范化 [英] Normalization of an table
问题描述
对于下表:
图书(图书,体裁,作者,生日,作者的生日,出版日期,版本,作者的姓名,
AddressOfTheAuthor,出版商,BookTitle,Price,ThePublisher的名称,TypeOfPress)
和
功能依赖项:
类型,新闻类型->价格
作者-> birthDateOfTheAuthor,NameOfTheAuthor,AddressOfTheAuthor
版本->发布者,PublicationDate,TypeOfPress,
书->所有属性,
i)查找表格的归一化形式
ii)对表格进行规范化.
For the next table:
Book(Book,Genre,Author, birthDateOfTheAuthor, PublicationDate, Edition, NameOfTheAuthor,
AddressOfTheAuthor, Publisher, BookTitle, Price,nameOfThePublisher, TypeOfPress)
and
functional dependencies:
Genre,TypeOfPress -> Price
Author -> birthDateOfTheAuthor,NameOfTheAuthor,AddressOfTheAuthor
Edition -> Publisher, PublicationDate, TypeOfPress,
Book -> all atributes,
i) find in which normalization form is the table
ii) do the normalization of the table.
推荐答案
没什么不礼貌,但我想指出一些规则,当您在问答环节中提问时,以防您错过了.
1.您是否已搜索或搜索过解决方案?
7.如果您有学校或大学的作业,请假设您的老师或讲师也在阅读这些论坛.
现在,去谷歌寻求解决方案.如果您只是主动搜索,那里的材料很多.祝你好运.
Not to be rude but I would like to point out some of the rules when asking questions here in Q&A, incase you missed it.
1. Have you searched or Googled for a solution?
7. If you have a school or university assignment, assume that your teacher or lecturer is also reading these forums.
Now go and Google for a solution. There''s plenty of materials there if you just have the initiative to search. Good luck.
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