EBK STARTING OUT WITH VISUAL C#
4th Edition
ISBN: 9780134400433
Author: GADDIS
Publisher: PEARSON
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Chapter 1.3, Problem 1.14CP
Program Plan Intro
Numbering system:
- Numbering system is used to express numbers in different mathematical notations.
- There are different types of numbering system as shown below:
- Binary:
- Numbers are represented with the base “2”.
- Hexadecimal:
- Numbers are represented with the base “16”.
- Octal:
- Numbers are represented with the base “8”.
- Binary:
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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)
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.
(b) Every student must be enrolled in the course called 'Math101'.
(c) A student cannot add more than two courses at a time…
Consider the following relational schema. An employee can work in more than one department; the pct_time field of the Works relation shows the percentage of time that a given employee works in a given department.
Emp(eid: integer, ename: string, age: integer, salary: real)
Works(eid: integer, did: integer, pct_time: integer)
Dept(did: integer, budget: real, managerid: integer)
Write the following queries in SQL:
a. Print the name of each employee whose salary exceeds the budget of all of the departments that he or she works in.
b. Find the enames of managers who manage only departments with budgets larger than $1 million, but at least one department with budget less than $5 million.
Chapter 1 Solutions
EBK STARTING OUT WITH VISUAL C#
Ch. 1.2 - What is a program?Ch. 1.2 - What is hardware?Ch. 1.2 - List the five major components of a computer...Ch. 1.2 - What part of the computer actually runs programs?Ch. 1.2 - Prob. 1.5CPCh. 1.2 - Prob. 1.6CPCh. 1.2 - Prob. 1.7CPCh. 1.2 - Prob. 1.8CPCh. 1.2 - Prob. 1.9CPCh. 1.2 - What do you call a program that performs a...
Ch. 1.2 - Word processing programs, spreadsheet programs,...Ch. 1.3 - What amount of memory is enough to store a letter...Ch. 1.3 - Prob. 1.13CPCh. 1.3 - Prob. 1.14CPCh. 1.3 - Prob. 1.15CPCh. 1.3 - Prob. 1.16CPCh. 1.3 - Prob. 1.17CPCh. 1.4 - A CPU understands instructions that are written...Ch. 1.4 - Prob. 1.19CPCh. 1.4 - When a CPU executes the instructions in a program,...Ch. 1.4 - What is assembly language?Ch. 1.4 - What type of programming language allows you to...Ch. 1.4 - Prob. 1.23CPCh. 1.4 - What do you call a program that translates a...Ch. 1.4 - What do you call a program that both translates...Ch. 1.4 - Prob. 1.26CPCh. 1.5 - What is a user interface?Ch. 1.5 - How does a command line interface work?Ch. 1.5 - Prob. 1.29CPCh. 1.5 - Prob. 1.30CPCh. 1.6 - What is an object?Ch. 1.6 - Prob. 1.32CPCh. 1.6 - What two general capabilities does an object have?Ch. 1.6 - Prob. 1.34CPCh. 1.6 - What is the purpose of an object that cannot be...Ch. 1.6 - What is a class?Ch. 1.6 - Prob. 1.37CPCh. 1.6 - Why might you need to write your own classes?Ch. 1.7 - Prob. 1.39CPCh. 1.7 - What is an algorithm?Ch. 1.7 - What is pseudocode?Ch. 1.7 - Prob. 1.42CPCh. 1.7 - Prob. 1.43CPCh. 1.8 - Prob. 1.44CPCh. 1.8 - Prob. 1.45CPCh. 1.8 - Prob. 1.46CPCh. 1.8 - Prob. 1.47CPCh. 1.8 - What is a ToolTip?Ch. 1.8 - Prob. 1.49CPCh. 1.8 - Prob. 1.50CPCh. 1 - A(n) __________ is a set of instructions that a...Ch. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - Prob. 9MCCh. 1 - Prob. 10MCCh. 1 - Prob. 11MCCh. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - Prob. 14MCCh. 1 - Prob. 15MCCh. 1 - Prob. 16MCCh. 1 - Prob. 17MCCh. 1 - Prob. 18MCCh. 1 - If you were to look at a machine language program,...Ch. 1 - Prob. 20MCCh. 1 - Prob. 21MCCh. 1 - The_____ translates an assembly language program...Ch. 1 - The words that make up a high-level programming...Ch. 1 - Prob. 24MCCh. 1 - A(n)_____ is a program that translates a...Ch. 1 - Prob. 26MCCh. 1 - A______ error does not prevent the program from...Ch. 1 - A(n) _______ is a set of well-defined logical...Ch. 1 - An informal language that has no syntax rules and...Ch. 1 - A _______ is a diagram that graphically depicts...Ch. 1 - Objects that are visible in a programs graphical...Ch. 1 - A _____ is code that describes a particular type...Ch. 1 - The _____ is a collection of classes and other...Ch. 1 - The ______ is the part of a computer with which...Ch. 1 - Before GUIs became popular, the ______ interface...Ch. 1 - __________ programs are usually event driven. a....Ch. 1 - Today, CPUs arc huge devices made of electrical...Ch. 1 - Prob. 2TFCh. 1 - Any piece of data that is stored in a computers...Ch. 1 - Prob. 4TFCh. 1 - Machine language is the only language that a CPU...Ch. 1 - Assembly language is considered a high-level...Ch. 1 - An interpreter is a program that both translates...Ch. 1 - A syntax error does not prevent a program from...Ch. 1 - Prob. 9TFCh. 1 - Word processing programs, spreadsheet programs,...Ch. 1 - Programmers must be careful not to make syntax...Ch. 1 - C# provides only the basic keywords and operators...Ch. 1 - Why is the CPU the most important component in a...Ch. 1 - Prob. 2SACh. 1 - Prob. 3SACh. 1 - What are the words that make up a high-level...Ch. 1 - What are the short words that are used in assembly...Ch. 1 - What is the difference between a compiler and an...Ch. 1 - Prob. 7SACh. 1 - Prob. 8SACh. 1 - Prob. 9SACh. 1 - Prob. 10SACh. 1 - Can you use C# alone to perform advanced...Ch. 1 - Prob. 12SACh. 1 - Prob. 13SACh. 1 - Prob. 14SACh. 1 - Prob. 15SACh. 1 - How can you view the projects form if it is not...Ch. 1 - Use what youve learned about the binary numbering...Ch. 1 - Use what youve learned about the binary numbering...Ch. 1 - Look at the ASCII chart in Appendix C and...Ch. 1 - Suppose your instructor gives three exams during...
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