Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137502783
Author: Tony Gaddis
Publisher: PEARSON+
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Expert Solution & Answer
Chapter 3.3, Problem 3.18CP
Explanation of Solution
a.
Data type of the given variable:
Given declaration is as follows:
var idNumber1 = “007”;
- String data type is used to represent text rath...
Explanation of Solution
b.
Data type of the given variable:
Given declaration is as follows:
var idNumber2 = 0...
Explanation of Solution
c.
Data type of the given variable:
Given declaration is as follows:
var idNumber3 = 7;
- An integer data type is a data type, which represents the integer range values from smallest to largest values...
Explanation of Solution
d.
Data type of the given variable:
Given declaration is as follows:
var idNumber1 = 7m;
- Decimal data type is used for storing the exact values...
Expert Solution & Answer
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Students have asked these similar questions
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.
1. Express the following query in SQL
(a) List customers (names) who do not have discounts but purchased at least one product of price greater than $50.
(b) Find…
Consider the following relational schema and briefly answer the questions that follow:
Emp(eid: integer, ename: string, age: integer, salary: real)
Works(eid: integer, did: integer, pct_time: integer)
Dept(did: integer, budget: real, managerid: integer)
a. Define a table constraint on Dept that will ensure that all managers have age > 30.
b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.
Consider the following relations:
Student(snum: integer, sname: string, rmajor: string,
level: string, age: integer)
Class(cname: string, meets_at: time, room: string, fid: integer)
Enrolled(snum: integer, cname: string)
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 3 Solutions
Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
Ch. 3.1 - What control can be used to gather text input from...Ch. 3.1 - Prob. 3.2CPCh. 3.1 - Prob. 3.3CPCh. 3.1 - How do you clear the contents of a TextBox...Ch. 3.2 - What is the purpose of a variable?Ch. 3.2 - Give an example of a variable declaration that...Ch. 3.2 - Prob. 3.7CPCh. 3.2 - Indicate whether each of the following is a legal...Ch. 3.2 - What will be stored in the message variable after...Ch. 3.2 - Prob. 3.10CP
Ch. 3.2 - Assuming the variable greeting has not been...Ch. 3.2 - Will the following statement cause an error? Why...Ch. 3.2 - Write a single declaration statement for the...Ch. 3.3 - Prob. 3.14CPCh. 3.3 - Which of the following variable declarations will...Ch. 3.3 - Write a programming statement that will convert...Ch. 3.3 - Prob. 3.17CPCh. 3.3 - Prob. 3.18CPCh. 3.4 - List the operands for the following math...Ch. 3.4 - Prob. 3.20CPCh. 3.4 - Prob. 3.21CPCh. 3.4 - Prob. 3.22CPCh. 3.4 - Prob. 3.23CPCh. 3.4 - Prob. 3.24CPCh. 3.4 - Rewrite the following statements using combined...Ch. 3.5 - Prob. 3.26CPCh. 3.5 - Prob. 3.27CPCh. 3.5 - Prob. 3.28CPCh. 3.5 - Prob. 3.29CPCh. 3.6 - Prob. 3.30CPCh. 3.6 - Write a programming statement that displays the...Ch. 3.6 - Prob. 3.32CPCh. 3.6 - Prob. 3.33CPCh. 3.6 - Prob. 3.34CPCh. 3.7 - Prob. 3.35CPCh. 3.7 - Prob. 3.37CPCh. 3.7 - Prob. 3.38CPCh. 3.7 - What causes the program to jump to the catch...Ch. 3.7 - Prob. 3.40CPCh. 3.9 - Prob. 3.41CPCh. 3.9 - Write a programming statement that declares a...Ch. 3.9 - Where should you place field declarations in a...Ch. 3.9 - Prob. 3.45CPCh. 3.9 - Prob. 3.46CPCh. 3.10 - Write a programming statement that declares a...Ch. 3.10 - Write a programming statement that uses the...Ch. 3.10 - What method of the Math class can he used to...Ch. 3.12 - What method of the Math class can be used to...Ch. 3.12 - Prob. 3.51CPCh. 3.12 - Prob. 3.52CPCh. 3.12 - Write a programming statement that gives the focus...Ch. 3.12 - Prob. 3.54CPCh. 3.12 - Prob. 3.55CPCh. 3.12 - Prob. 3.56CPCh. 3.12 - Prob. 3.57CPCh. 3.12 - When a GroupBox control is deleted, what happens...Ch. 3.12 - Prob. 3.59CPCh. 3.12 - Prob. 3.60CPCh. 3 - When the user types into a TextBox control, the...Ch. 3 - A_____ is a storage location in memory that is...Ch. 3 - Prob. 3MCCh. 3 - A variables______ indicates the type of data that...Ch. 3 - Fundamental types of data, such as strings,...Ch. 3 - A______ identifies a variable in the program code...Ch. 3 - A common operation performed on strings is_______,...Ch. 3 - A______ belongs to the method in which it is...Ch. 3 - Programmers use the term________ to describe the...Ch. 3 - A variables______ is the time period during which...Ch. 3 - One way to make sure that a variable has been...Ch. 3 - You can use a______ to explicitly convert a value...Ch. 3 - Prob. 13MCCh. 3 - A programmers tools for performing calculations...Ch. 3 - A_______ performs a calculation and gives a value....Ch. 3 - Prob. 16MCCh. 3 - Prob. 17MCCh. 3 - A(n)_______ is a piece of data that is passed into...Ch. 3 - A(n)________ is an unexpected error that occurs...Ch. 3 - Prob. 20MCCh. 3 - Prob. 21MCCh. 3 - Prob. 22MCCh. 3 - A_______ is a name that represents a value that...Ch. 3 - A_______ is a variable that is declared inside a...Ch. 3 - A(n)________ specifics how a class member can be...Ch. 3 - A________ is a field that cannot be changed by any...Ch. 3 - The .NET Framework provides a class named_______,...Ch. 3 - Prob. 28MCCh. 3 - The order in which controls receive the focus is...Ch. 3 - Prob. 30MCCh. 3 - Prob. 1TFCh. 3 - Prob. 2TFCh. 3 - Prob. 3TFCh. 3 - Prob. 4TFCh. 3 - The order of operations dictates that the division...Ch. 3 - Prob. 6TFCh. 3 - When you pass the formatting string "C" or "c" to...Ch. 3 - Prob. 8TFCh. 3 - An error will occur if the compiler finds a...Ch. 3 - Prob. 10TFCh. 3 - Prob. 1SACh. 3 - What two things does a variable declaration...Ch. 3 - Give an example of a programming statement that...Ch. 3 - What is the term used for a number that is written...Ch. 3 - What are the values on the right and left of an...Ch. 3 - Name the family of methods in the .NET Framework...Ch. 3 - Prob. 8SACh. 3 - What is the purpose of a try-catch statement?Ch. 3 - Prob. 10SACh. 3 - Prob. 11SACh. 3 - Prob. 12SACh. 3 - Name Formatter Create an application that lets the...Ch. 3 - Tip, Tax, and Total Create an application that...Ch. 3 - Distance Traveled Assuming there are no accidents...Ch. 3 - Sales Tax and Total Create an application that...Ch. 3 - Celsius and Fahrenheit Temperature Converter...Ch. 3 - Body Mass Index Create an application that lets...Ch. 3 - Prob. 7PPCh. 3 - How Much Insurance? Many financial experts advise...Ch. 3 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 3 - Prob. 10PPCh. 3 - Automobile Costs Create an application that lets...Ch. 3 - Paint Job Estimator A painting company has...Ch. 3 - Property Tax If you own real estate in a...Ch. 3 - Stadium Seating There are three seating categories...
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Similar questions
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