EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 5, Problem 22E
Explanation of Solution
Advanced SQL statement:
Select tile20, sum(c)
from (select c, ntile(20) over (order by (a)) as tile20
from s) as s
groupby tile20
Explanation:
...Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook 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
EBK DATABASE SYSTEM CONCEPTS
Knowledge Booster
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 System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education