Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 7, Problem 32E
a.
Explanation of Solution
Nontrivial functional dependency
- The functional dependency CD → AB can also be written as follows:
CD → A
CD → B
- Now, CD+ = {C D A B C E}
- Thus, CD+ contains B without using the functional dependency, CD → B.
- Thus, CD → B can be deleted...
b.
Explanation of Solution
BCNF decomposition
- Here A → BC violates third normal form.
- Hence R(ABCDE) can be decomposed i...
c.
Explanation of Solution
Loseless decomposition
- The common attribute is A in relations R1(ABC) and R2(ADE)...
d.
Explanation of Solution
Dependency preserving decomposition
- The functional dependencies of original relation R is BD → E and CD → AB...
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
i would like to get help to resolve the following case
Challenge: Assume that the assigned network addresses are correct. Can you deduce (guess) what the network subnet masks are? Explain while providing subnet mask bits for each subnet mask.
[Hint: Look at the addresses in binary and consider the host ids]
What is the main difference between Static routing and Dynamic routing (OSPF)? in terms of either wildcard mask or subnet mask, or especially for increasing the number of networks, explaining the reason while providing a specific example like what command they use in CLI
Chapter 7 Solutions
Database System Concepts
Ch. 7 - Prob. 1PECh. 7 - Prob. 2PECh. 7 - Explain how functional dependencies can be used to...Ch. 7 - Prob. 4PECh. 7 - Prob. 5PECh. 7 - Prob. 6PECh. 7 - Prob. 7PECh. 7 - Prob. 8PECh. 7 - Prob. 9PECh. 7 - Prob. 10PE
Ch. 7 - Prob. 11PECh. 7 - Prob. 12PECh. 7 - Prob. 13PECh. 7 - Prob. 14PECh. 7 - Prob. 15PECh. 7 - Prob. 16PECh. 7 - Prob. 17PECh. 7 - Prob. 18PECh. 7 - Prob. 19PECh. 7 - Prob. 20PECh. 7 - Prob. 21ECh. 7 - Prob. 22ECh. 7 -
Explain what is meant by repetition of...Ch. 7 -
Why are certain functional dependencies called...Ch. 7 - Prob. 25ECh. 7 - Prob. 26ECh. 7 - Prob. 27ECh. 7 - Prob. 28ECh. 7 - Prob. 29ECh. 7 - Prob. 30ECh. 7 - Prob. 32ECh. 7 - Prob. 33ECh. 7 - Prob. 35ECh. 7 - Prob. 36ECh. 7 - Prob. 37ECh. 7 - Prob. 38ECh. 7 - Prob. 39ECh. 7 - Prob. 40ECh. 7 - Prob. 41ECh. 7 - Prob. 42ECh. 7 - Prob. 43E
Knowledge Booster
Similar questions
- Add a new class Checking Account that inherits from the BankAccount class, and has a double instance variable overdraftLimit in addition to the variables inherited from the superclass. Create a constructor for the Checking Account class that takes in the account number, account holder name, initial balance, account type and overdraft limit as input, and uses the super keyword to call the constructor of the superclass, passing in the account number, account holder name and initial balance, account type. Re-write the withdraw() method in the CheckingAccount class so that it first checks if the withdrawal amount is less than the current balance plus the overdraft limit. If it is, the withdrawal is allowed and the balance is updated. If not, the method should return an error message "Insufficient funds". Create a new method displayOverdraft Limit() that returns the overdraft limit of the Checking Account. In the BankAccountTest class, create a new object of type Checking Account with…arrow_forwardNeed help answering this pseudocode row questionarrow_forwardNeed help! Wheres the error in the pseudocode?arrow_forward
- Need help answering this question with a flowchart!arrow_forwardHW: a sewer carry flow = 600 l/s at 34 full at max WWF and 150 l/s at min DWF. Determine the diameter and minimum slope. Then get velocity and depth of sewage flow at max WWF and DWF. Use Vmin = 0.6m/s.arrow_forwardGeneral accountingarrow_forward
- JOB UPDATE Apply on- VinkJobs.com @ OR Search "Vinkjobs.com" on Google COMPANY 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_forward+is+how+many+tree+in+ipl&rlz=1C1GCEA_enIN1122IN1122&oq=1+dot+ball+is+how+many+tree+in Google 1 dot ball is how many tree in ipl All Images News Videos Short videos Shopping Web More 500 trees 4) हिन्दी में In English The step was a part of the Board of Control for Cricket in India's green initiative. The BCCI, having partnered with the Tata Group, has promised to plant as many as 500 trees for every dot ball bowled in the Indian Premier League. 25 Mar 2025 Sportstar https://sportstar.thehindu.com > Cricket IPL IPL News IPL 2025: Why are green tree symbols showing up for every ... A Translate to fo-d About featured snippets . Feedback Toolsarrow_forwardPastner Brands is a calendar-year firm with operations in several countries. As part of its executive compensation plan, at January 1, 2024, the company issued 480,000 executive stock options permitting executives to buy 480,000 shares of Pastner stock for $38 per share. One-fourth of the options vest in each of the next four years beginning at December 31, 2024 (graded vesting). Pastner elects to separate the total award into four groups (or tranches) according to the year in which they vest and measures the compensation cost for each vesting date as a separate award. The fair value of each tranche is estimated at January 1, 2024, as follows: Vesting Date Amount Fair Value Vesting per Option: December 31, 2024 25% $ 3.90 December 31, 2025 25% $ 4.40 25% $ 4.90 25% $ 5.40 December 31, 2026 December 31, 2027 Required: 1. Determine the compensation expense related to the options to be recorded each year 2024-2027, assuming Pastner allocates the compensation cost for each of the four…arrow_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
Operations Research : Applications and AlgorithmsComputer ScienceISBN:9780534380588Author:Wayne L. WinstonPublisher:Brooks Cole
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
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
Operations Research : Applications and Algorithms
Computer Science
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Brooks Cole
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage