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Most of the columns are self-explanatory, and the below columns...

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Most of the columns are self-explanatory, and the below columns...

Most of the columns are self-explanatory, and the below columns provide further explanations:

(i)  RRP/Item: Recommended Retail Price is the price for an item without any discount.

(ii)  Cost/Item: This is the cost price per item.

(iii)  Discount/Item: This is the discount per item for a customer in a promotion period (a promotion period has a start date and an end date).

(iv)  OrderAmount: (RRP/Item - Discount/Item ) * (Quantity Ordered)

(v)  Profit: (RRP/Item - Cost/Item - Discount/Item) * (Quantity Ordered)

Moreover,

(vi)  For all Oracle SQL queries, you must use ANSI JOIN Method (i.e., you must use inner join, outer join, left join or right join) where applicable.

(vii)  You do not need to run the SQL queries in Oracle SQL Developer, but the SQL queries must follow the Oracle SQL syntax.

 

Required:
With reference to the above scenario, please answer the following three questions:

(a)  Using the above table structure, draw the functional dependency diagram in the First Normal Form (1NF). Identify, label, and explain the selection of Primary Key(s), all transitive and partial dependencies. Write the relational schemas and show all the primary keys and foreign keys.

 

(b)  Create 2NF, 3NF, and BCNF (if necessary), showing all intermediate steps in the normalisation process. Write the relational schemas and show all the primary keys and foreign keys.

 

(c)  Assuming your relational schemas in Question 1 (b) are now converted into tables. Write an SQL query (based on Oracle SQL syntax) using the SQL Join clause on these tables to create the sample report.

 

Answer & Explanation

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Answered by aksingh5848 on coursehero.com

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Step-by-step explanation

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