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Create ERD containing Order and Customer entity types connected by 1-M relationship from Customer to Order. Select suiatble relationship name using your common knowledge of intersection between customers and orders. Define minimum cardinalities so that an order is optional for customer and a customer is mandatory for an order. For the Customer entity type, add attributes CustNo(primary key), CustFirstName, CustLastName, CustStreet, CustCity, CustState, CustZip, and CustBal (balance). For the Order entity type, OrdCity, OrdState and OrdZip.
Compute the functional dependencies which exist in following table. After determining the functional dependencies, transform this table to an equivalent collection of the tables which are in third normal form.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
Explain how much the modulating signal power is required to generate 100 percent modulation? What is the approximate center frequency of filter required to pass the lower sideband?
Create a function that returns the day of the week for a specified date. Create a trigger that displays the message "Emp table updated" when an update to the employee table increases the employee's basic salary.
Use Cases Perform a requirements analysis for the Case Study
Draw an ER diagram for your database scenario. Design a set of 3NF tables for your database scenario.
At this point in the design process, you would have a detailed physical schema created for a database. How would you approach converting your schema into a database, complete with sample data? Explain your approach in two to three paragraphs.
Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts.
Create use case to describe a typical sales process. Then make a sequence diagram for use case.
Knowledge and Data Warehousing
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
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