EPACK DATABASE SYSTEMS WITH LOOSELEAF
13th Edition
ISBN: 9780357475171
Author: Coronel
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 5, Problem 11RQ
Explanation of Solution
Entity cluster:
- An entity cluster is used to represent many entities and relationships in the ER (Entity Relationship) diagram. It is a virtual entity type.
- Combining many interrelated entities into a one abstract entity object is called as an entity cluster.
- It is consider as “abstract” or “virtual” which means it is not actually an entity in the final ER diagram, but in...
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Exercise 1 Function and Structure [30 pts]
Please debug the following program and answer the following questions. There is a cycle in a linked
list if some node in the list can be reached again by continuously following the next pointer.
#include
typedef struct node {
int value;
struct node *next;
} node;
int 11_has_cycle (node *first)
if (first
==
node *head
{
NULL) return 0;B
= first;
while (head->next != NULL) {
if (head == first) {
return 1; }
head
head->next;
}
return 0;
void test_11_has_cycle() {
int i;
node nodes [6];
for (i = 0; i < 6; i++)
nodes [i] .next = NULL;
nodes [i].value
i;
}
nodes [0] .next
=
&nodes [1];
nodes [1] .next = &nodes [2];
nodes [2] .next
=
&nodes [3];
nodes [3] .next = & nodes [4];
nodes [4] .next
=
NULL;
nodes [5] .next = &nodes [0];
printf("1. Checking first list for cycles. \n Function 11_has_cycle says it
hass cycle\n\n", 11_has_cycle (&nodes [0]) ?"a":"no");
printf("2. Checking length-zero list for cycles. \n Function 11_has_cycle
says it has %s…
checkpoint exercice for my students for Amortized Analysis
using r language
Chapter 5 Solutions
EPACK DATABASE SYSTEMS WITH LOOSELEAF
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- using r languagearrow_forwardusing r languagearrow_forwardCompute a Monte Carlo estimate o of 0.5 0 = L ē -xdx 0 by sampling from Uniform(0, 0.5). Find another Monte Carlo estimator 0* by sampling from the exponential distribution. Use simulations to estimate the variance of Ô and ⑦*, which estimator has smaller variance?arrow_forward
- import tkint class ShowInfoGUI:def __init__(self):# Create the main windowself.main_window = tkinter.Tk() # Create two framesself.top_frame = tkinter.Frame(self.main_window)self.bottom_frame = tkinter.Frame(self.main_window)arrow_forwardJOB UPDATE Apply on- COMPANY VinkJobs.com @ OR Search "Vinkjobs.com" on Google JOB PROFILE JOB LOCATION INTELLIFLO APPLICATION DEVELOPER MULTIPLE CITIES GLOBAL LOGIC SOFTWARE ENGINEER/SDET DELHI NCR SWIGGY SOFTWARE DEVELOPMENT BENGALURU AVALARA SOFTWARE ENGINEER (WFH) MULTIPLE CITIES LENSKART FULL STACK DEVELOPER MULTIPLE CITIES ACCENTURE MEDPACE IT CUST SERVICE SOFTWARE ENGINEER MUMBAI MUMBAI GENPACT BUSINESS ANALYST DELHI NCR WELOCALIZE WORK FROM HOME MULTIPLE CITIES NTT DATA BPO ASSOCIATE DELHI NCRarrow_forwardHow can predictive and prescriptive modeling be used to measure operational performance in real-time? Do you see any potential downsides to this application? Can you provide an example?arrow_forward
- Tracing the Recursion. Tracing the Recursion. Observe the recursive solution provided below. 1. Which line(s) of this program define(s) the base case of sumOfDigits() method? 2. Which line(s) of this program include recursive call(s)? 3. Trace the recursion below. You must show the trace step by step; otherwise – little to no credit! 4. Show me the final result! 1 public class SumOfDigitsCalculator { 30 123456 7% 8 public static void main(String[] args) { System.out.println(sumOfDigits(1234)); } public static int sumOfDigits (int number) { if (number == 0) 9 10 11 12 } 13 } else return 0; return number % 10 + sumOfDigits (number / 10);arrow_forwardmodule : java 731 Question3: (30 MARKS) Passenger Rail Agency for South Africa Train Scheduling System Problem Statement Design and implement a train scheduling system for Prasa railway network. The system should handle the following functionalities: 1. Scheduling trains: Allow the addition of train schedules, ensuring that no two trains use the same platform at the same time at any station. 2. Dynamic updates: Enable adding new train schedules and canceling existing ones. 3. Real-time simulation: Use multithreading to simulate the operation of trains (e.g., arriving, departing). 4. Data management: Use ArrayList to manage train schedules and platform assignments. Requirements 1. Add Train Schedule, Cancel Scheduled Train, View Train Schedules and Platform Management 2. Concurrency Handling with Multithreading i.e Use threads to simulate train operations,…arrow_forwardplease answer my 2 java questions correctly , include all comments etc and layout and structure must be correct , follow the requirementsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Fundamentals of Information SystemsComputer ScienceISBN:9781305082168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Fundamentals of Information SystemsComputer ScienceISBN:9781337097536Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning