简体繁体中英

Which Normal Form it is?

原文 2020-05-22 20:44:55 1 1 sql/ sql-server/ database

I need to know the normal form of all the below schema. Here text which are in bold is primary key and text with * is foreign key. As per my understanding of normalization forms all are in 3NF.

Author ( Email , Name, Address, Telephone1, Telephone2, Telephone3)

Publisher ( Name , Address, URL, ABN)

WrittenBy ( Email*, ISBN* , Title*)

Book ( ISBN , Title, Edition, Year, ListPrice, PublisherName*)

Warehouse ( Code , Address)

StockedAt ( ISBN*, Code* , StockQty)

ShoppingCart ( CartID , TimeStamp, ISBN, BuyPrice, Qty)

Customer ( Email , Name, Address, CartID*)

1 answers

Written by table connecting Author and Book

Looks like its satisfying 3NF

1NF: atomic-related data-distinct column names

2NF: 1NF + no partial dependency

3NF: 2NF + no transitive dependency

In which normal form are these FDs?

Reach third normal form

Third (?) normal form of a relation

Is this considered a normal form failure?

Are these tables in the third normal form?

Second Normal Form Definition

design - sixth normal form

Transforming into Normal Form

Why is this in 2nd Normal Form

Converting a table into Third Normal Form

暂无

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

Related Question In which normal form are these FDs? Reach third normal form Third (?) normal form of a relation Is this considered a normal form failure? Are these tables in the third normal form? Second Normal Form Definition design - sixth normal form Transforming into Normal Form Why is this in 2nd Normal Form Converting a table into Third Normal Form

Related Tags

Which Normal Form it is?

Question

1 answers

solution1 0 2020-05-22 23:23:17

solution1
0 2020-05-22 23:23:17