Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Expert Solution & Answer
Chapter 18, Problem 19E
Explanation of Solution
Forest protocol not ensuring serializability
- Consider a system with two trees.
- The first tree consists of n1 as the parent node and n3, n4 as the child node of n1. n7 is the child node of n3 and n8, n9 are the child nodes of n4.
- The second tree consists of n2 as the parent node and n5, n6 as the child node of n2. n10 is the child node of n5 and n11, n12 as the child node of n6.
- There are two transactions T1 and T2.
- The legal schedule include:
T1 T2
lock(n1)
lock(n3)
write(n3)
unlock(n3)
lock(n2)
lock(n5)
...
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For context and I am looking for someone with experience in either computer graphics with companies, or at least has an expertise or experiences in engine development.I am developing a game engine. The niche that I want to focus in open-world development to specialize in.I have seen, heard, and had discussions about various approaches to scene graphs and ways they get handled to be sent to the renderer.If I wanted to focus on open-world, what are different tips and approaches you can tell me of how complex scenes. Like open-world get rendered? What I mean when asking this question, what is the design layout typically of a few approaches that is used for rendering not just basic scenes but complex scenes? Especially since I want to focus on building a game engine that hopes to focuse in open-world.I am using the entity component system framework EnTT, and would like to know if you can also provide tips and how that framework can be incorporated into the design layouts of how you've…
Please original work
Describe the steps of the process of data discovery
Why each one is important to data analysis and data warehousing frameworks.
Please cite in text references and add weblinks
The following is code for a disc golf program written in C++:
player.h:
#ifndef PLAYER_H
#define PLAYER_H
#include <string>
#include <iostream>
class Player {
private:
std::string courses[20]; // Array of course names
int scores[20]; // Array of scores
int gameCount; // Number of games played
public:
Player(); // Constructor
void CheckGame(const std::string& courseName, int gameScore);
void ReportPlayer(int playerId) const;
};
#endif // PLAYER_H
player.cpp:
#include "player.h"
#include <iomanip>
Player::Player() : gameCount(0) {}
void Player::CheckGame(const std::string& courseName, int gameScore) {
for (int i = 0; i < gameCount; ++i) {
if (courses[i] == courseName) {
// If course has been played, check for minimum score
if (gameScore < scores[i]) {
scores[i] = gameScore; // Update to new minimum score
}
return; // Exit after…
Chapter 18 Solutions
Database System Concepts
Ch. 18 - Prob. 1PECh. 18 - Prob. 2PECh. 18 - Prob. 3PECh. 18 - Prob. 4PECh. 18 - Prob. 5PECh. 18 - Prob. 6PECh. 18 - Prob. 7PECh. 18 - Prob. 8PECh. 18 - Prob. 9PECh. 18 - Prob. 10PE
Ch. 18 - Prob. 11PECh. 18 - Prob. 12PECh. 18 - Prob. 13PECh. 18 - Prob. 14PECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36E
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