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1. Write a reference-based implementation of a queue that uses a linear linked list to represent the items in the queue. You will need both a head reference and a tail reference. When you are done, compare your implementation to the one given in this chapter that uses a circular linked list with one external reference. Which implementation is easier to write? Which is easier to understand? Which is more efficient?
2. Define and implement a class Pen that has an instance of Ball as one of its data fields. Provide several members for the class Pen, such as the data field color and methods isEmpty and write.
Write a SELECT statement that joins the Customers, Orders, OrderItems, and Products Tables. This statement should return these columns: LastName, FirstName, OrderDate, ProductName, ItemPrice, DiscountAmount, and Quantity.
What is the key value of the 4th index record on the top level, assuming each index record points to the record with the highest key value in a block of the next level down?
Write a toString method that will return a String containing all the relevant data for each of your objects.
As an external consultant, you have been hired by Overstock.com to evaluate the effectiveness of the processes they undertook in implementing its ERP system and to present your evaluation in report format to the CEO Patrick Byrne
Your job is to create a database management system for bike shop who ‘buys' and ‘sells' new and second-hand bikes, and also parts of bike. Bike is constructed with parts while part can be fitted to different bikes.
Suppose we are to design a registrar's database to store information about students, courses, the courses students have taken. Convert the E/R diagram into a relational schema.
Create use case to describe a typical sales process. Then make a sequence diagram for use case.
What is meant by data independence? Explain your answer and identify two benefits of separating application software from the database management system.
hello good night what is the justification for utalizing database management system approach i3939m not
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.
Describe the major advantages and disadvantages of a database system approach to managing data
in your opinion what are the three biggest challenges in planning and designing a solution for a programming
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