Relational Database Consider the following relation: Invoice(Order_ID, Order_Date, Customer_ID, Customer_Name,Customer_Address,Product_ID, Product_Desc, Price, Order_Quantity)   FD1 - Order_ID -> Order_Date, Customer_ID, Customer_Name, Customer_Address FD2 - Customer_ID -> Customer_Name, Customer_Address FD3 - Product_ID -> Product_Description, Price FD4 - Order_ID, Product_ID -> Order_Quantity   Give reasons to explain if this is in 2NF or not. If not, decompose it to 2NF. Give reasons to explain if this is in 3NF or not. If not, decompose it to 3NF.

A Guide to SQL
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Chapter2: Database Design Fundamentals
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Relational Database

Consider the following relation:

Invoice(Order_ID, Order_Date, Customer_ID, Customer_Name,Customer_Address,Product_ID, Product_Desc, Price, Order_Quantity)

 

FD1 - Order_ID -> Order_Date, Customer_ID, Customer_Name, Customer_Address

FD2 - Customer_ID -> Customer_Name, Customer_Address

FD3 - Product_ID -> Product_Description, Price

FD4 - Order_ID, Product_ID -> Order_Quantity

 

        1. Give reasons to explain if this is in 2NF or not. If not, decompose it to 2NF.
        2. Give reasons to explain if this is in 3NF or not. If not, decompose it to 3NF.
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