Question

Natalie wants to create a database to collect information about sales transactions. She would like to use the database to look up customer names and sales prices if they return a product She would like to sort the items in the database by product number. What fields should she have in her database?

Answer 1

Answer:

Customer Table

1. Customer name
2. Customer id

Product Table

1. Product id/number (primary key, auto increment)
2. Product name
3. Product sale price

Transactions Table

1. Transaction Id
2. Customer Id
3. Product id
4. Quantity
5. Price
6. Date

Explanation:

Natalie wants to fetch following information from database

1. Look up customer name and sale price
2. Sort items in db by product number

To lookup customer name and sale price perform a join on Transactions table and Customer table.Assuming database is build in mysql the query to fetch required results would be

select transction.productId,transaction.customerid,customer.customername from transactions join customer ON

customer.customerid=transcation.customerid

where productid="user provided product id of returned product"

For sorting products by number set produc number in product table a auto increment primary key