Create a relational database for Monty’s Appliance Repair Services invoicing process and represent the database as an ERD using Crow’s feet notation.
Information about Acme’s Invoicing Process:
Monty’s customer product pricing is based on various factors, therefore the price for a particular service may vary from customer to customer. Monty bills for only one repair order per invoice, but there could be multiple invoices per repair if the technician needs to complete the repair in stages. Customers may have multiple appliances, but each appliance requires a separate repair order because different technicians may handle the repairs.
These are the attributes that Monty stores in its invoice files:
appliance serial number
date of order
item type (service or part)
item UoM (unit of measure, such as hour or each)
payment terms ID
price per unit
quantity on hand (for parts)
repair order number
Design a set of relational tables to store this data. Hint: You should have 8 or 9 tables.
Identify the primary key for each table.
Identify any foreign keys.
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