EBK ESSENTIALS OF MIS,
13th Edition
ISBN: 8220106778494
Author: LAUDON
Publisher: PEARSON
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Expert Solution & Answer
Chapter 6, Problem 2RQ
Explanation of Solution
DBMS (
DBMS is a program or software that is used to control and manage the database. It is a large, complex program or software that is used to manage and administer the stored databases and it is a computer based system to keep records.
Query language such as SQL is used along with DBMS to interact with the database.
Work of a DBMS:
- DBMS is used to Create Database which enables the user to store or contain a large amount of data.
- DBMS is used to manage the data definitions in database dictionary.
- DBMS provides security to the user by having network security such as firewalls which monitors internet traffic and using an Intrusion Detection System (IDS) device that blocks unauthorized access.
- The database can be accessed by more than one user simultaneously...
Explanation of Solution
Difference between logical and physical views of data:
| Logical view | Physical view |
| The logical view of a database program represents data in a format. | The physical view deals with the physical arrangement, actual arrangement and location of data in the direct access storage devices. |
| The logical view presents data as end users would observe them... |
Explanation of Solution
Three operations of a RDBMS:
Three operations are used to develop useful sets of data in the RDBMS. They are:
- Select – it makes a subset containing of all records in the file that meet specified criteria...
Explanation of Solution
Three major capabilities of a DBMS:
Database management system contains many capabilities which give value to an organization way of keeping its data. They are:
- Data definition language
- Data dictionary language
- Data manipulation language
Data definition language:
- It identifies how the content is structured within a database.
- Database tables are created with data definition language and the features of the fields in each table is defined.
Data dictionary language:
- Information of a database table fields can be displayed...
Explanation of Solution
Non-relational database management system:
- A non-relational database gives a
mechanism for storing and recovering of data that is modeled in means other than the tabular relations used in relational databases. - The non-relational databases are gradually used in big data and real time web applications.
Difference between relational DBMS and non-relational DBMS:
Expert Solution & Answer
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Change the following code so that there is always at least one way to get from the left corner to the top right, but the labyrinth is still randomized.
The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. Take care that the player and the dragon cannot start off on walls. Also the dragon starts off from a randomly chosen position
public class Labyrinth { private final int size; private final Cell[][] grid;
public Labyrinth(int size) { this.size = size; this.grid = new Cell[size][size]; generateLabyrinth(); }
private void generateLabyrinth() { Random rand = new Random(); for (int i = 0; i < size; i++) { for (int j = 0; j < size; j++) { // Randomly create walls and paths grid[i][j] = new Cell(rand.nextBoolean()); } } // Ensure start and end are…
Change the following code so that it checks the following 3 conditions:
1. there is no space between each cells (imgs)
2. even if it is resized, the components wouldn't disappear
3. The GameGUI JPanel takes all the JFrame space, so that there shouldn't be extra space appearing in the frame other than the game.
Main():
Labyrinth labyrinth = new Labyrinth(10);
Player player = new Player(9, 0); Dragon dragon = new Dragon(9, 9);
JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.add(gui); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true);
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; //labyrinth, player, dragon are just public classes
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png");…
Chapter 6 Solutions
EBK ESSENTIALS OF MIS,
Ch. 6.3 - Identify the problem in this case study. To what...Ch. 6.3 - Prob. 2CQ1Ch. 6.3 - Prob. 4CQ1Ch. 6.5 - Prob. 1CQ2Ch. 6.5 - What people, organization, and technology issues...Ch. 6.5 - Prob. 3CQ2Ch. 6.5 - Prob. 4CQ2Ch. 6 - Prob. 1IQCh. 6 - Prob. 2IQCh. 6 - Prob. 3IQ
Ch. 6 - Prob. 4IQCh. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5DQCh. 6 - Prob. 6DQCh. 6 - Prob. 7DQCh. 6 - Prob. 8HMPCh. 6 - Prob. 9HMPCh. 6 - Prob. 11HMPCh. 6 - Prob. 13CSQCh. 6 - Prob. 14CSQCh. 6 - Prob. 15CSQCh. 6 - Prob. 16CSQCh. 6 - Prob. 17MLMCh. 6 - Prob. 18MLM
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