C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2.9E
Write a single C++ statement or line that accomplishes each of the following:
a) Print the message "Enter two numbers".
b) Assign the product of variables b and c to variable a.
c) State that a
d) Input three integer values from the keyboard into integer variables a, b and c.
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Consider the following database for some store:
Customers (cid, cname, city, discount)Agents (aid, aname, city, percent)Products (pid, pname, city, quantity, price)Orders (ordno, mon, cid, aid, pid, qty, dollars)
The relation Customers records the ID (cid), name (cname), location (city) of each customer and a discount percentage (discount) for this customer.
The relation Agents records the ID (aid), name (aname), location (city) of each agent and a transaction fee (percent) charged by this agent.
The relation Products lists the ID (pid), name (pname), location (city), quantity and price of available products.
And finally, the relation Orders contains a unique order number (ordno), the month (mon), customer (cid), agent (aid), product (pid), quantity (qty) of each order as well as the total value (dollars) of the transaction.
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(a) List customers (names) who do not have discounts but purchased at least one product of price greater than $50.
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Consider the following relational schema and briefly answer the questions that follow:
Emp(eid: integer, ename: string, age: integer, salary: real)
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Consider the following relations:
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level: string, age: integer)
Class(cname: string, meets_at: time, room: string, fid: integer)
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Faculty(fid: integer, fname: string, deptid: integer)
The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class.
2. Express each of the following integrity constraints in SQL unless it is implied by the primary and foreign key constraint; if so, explain how it is implied. If the constraint cannot be expressed in SQL, say so. For each constraint, state what operations (inserts, deletes, and updates on specific relations) must be monitored to enforce the constraint.
(a) Every faculty member must teach at least two courses.
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Chapter 2 Solutions
C++ How to Program (10th Edition)
Ch. 2 - Discuss the meaning of each of the following...Ch. 2 - Fill in blanks in each of the following: a)...Ch. 2 - Write a single C++ statement or line that...Ch. 2 - State which of the following are true and which...Ch. 2 - Fill in the blanks in each of the following: a)...Ch. 2 - What, if anything, prints when each of the...Ch. 2 - Which of the following statements contain...Ch. 2 - Given the algebraic equation y — ax 3 + 7. which...Ch. 2 - (OrderofEvaluation) State the order of evaluation...Ch. 2 - (Arithmetic) Write a program that asks the user to...
Ch. 2 - (Printing) Write a program that prints the numbers...Ch. 2 - (Comparing Integers) Write a program that asks the...Ch. 2 - (Arithmetic, Smallest and Largest) Write a program...Ch. 2 - (Diameter, Circumference and Area of a Circle)...Ch. 2 - (Displaying Shapes with Asterisks) Write a program...Ch. 2 - What does the fallowing code print? Cout “*\n...Ch. 2 - (Largest and Smallest Integers) Write a program...Ch. 2 - (Odd or Even) Write a program that reads an...Ch. 2 - (Multiples)Write a program that reads in two...Ch. 2 - (Checkerboard Pattern) Display the following...Ch. 2 - (Integer Equivalent of a Character) Here is a peek...Ch. 2 - (Digits of an Integer) Write a program that inputs...Ch. 2 - (Table) Using the techniques of this chapter,...Ch. 2 - (Body Mass Index Calculator) We introduced the...Ch. 2 - (Car-Pool Savings Calculator) Research several...
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