Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 19, Problem 24E
Explanation of Solution
Comparison of log-based recovery with the shadow-copy scheme in terms of their overheads:
- In log-based recovery, a log is created in stable storage for each transaction.
- Whereas in shadow-copy scheme, a transaction is performed on the local copy of the
database . - With log-based recovery, each update in database is written twice as follows:
- Once as a part of the page to which it is written.
- Once as a part of the log record for the update.
- While shadow copying does not involve in log writes. But here, I/O operations are increased and concurrency decreases when it comes to the data that is added for the first time to a newly allocated disk page...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
8.4 Self-Bias Configuration
20. Determine Zi. Zo. and A,, for the network of Fig. 8.73 if gf, = 3000 μS and gos = 50 μs.
21. Determine Z, Zo, and A, for the network of Fig. 8.73 if the 20-uF capacitor is removed and the
parameters of the network are the same as in Problem 20. Compare results with those of
Problem 20.
+12 V
3.3 ΚΩ
HE
C₂
Vo
Z
Zo
C₁
10 ΜΩ
Z₁
1.1 ΚΩ
Cs 20 µF
FIG. 8.73
Problems 20, 21, 22, and 59.
21. Determine Zi, Zo, and A, for the network of Fig. 8.73 if the 20-μF capacitor is removed and the
parameters of the network are the same as in Problem 20. Compare results with those of
Problem 20.
+12 V
3.3 ΚΩ
+6
C₂
C₁
Z₁
10 ΜΩ
1.1 ΚΩ
Cs
20 μF
FIG. 8.73
Zo
Ninth Edition
Determine Zi, Zo and Av
20 V
Zi
+
1 ΜΩ
2 ΚΩ
HH
Z
IDSS= 6MA
Vp=-6V
Yos = 40μS
20 and 47
Knowledge Booster
Similar questions
- What is the worst case time complexity of the following algorithm for i = 1 to x do for j = 2^((i-1)x) to 2^(in) do print(i,j)arrow_forwardProve for each pair of expression f(n) and g(n) whether f(n) is big O, little o Ω,ω or Θ of g(n). For each case it is possible that more than one of these conditions is satisfied:1. f(n) =log(n2^n), g(n) = log(sqrt(n)2^(n^2))2. f(n) =nsqrt(n) +log(n^n), g(n) =n + sqrt(n)lognarrow_forwardI need to make a parallel version of this sequential codearrow_forward
- I need to make a parallel version of this sequential code.arrow_forwardBenefits of using arrays as instance variables: What are the advantages of incorporating arrays as instance variables within a class? Initializing and managing arrays: How do you initialize and manage arrays within class constructors and mutators (setters)? Example of using arrays as instance variables: Share an example where you have used arrays as instance variables and discuss its application in a real-world scenario. Common mistakes with arrays as instance variables: What are some common mistakes to avoid when working with arrays as instance variables? Information hiding violations: What is the potential violation of information hiding when using arrays as instance variables? How can this be resolved?arrow_forwardDo you think that computers should replace teachers? Give three references with your answer.arrow_forward
- Is online learning or face to face learning better to teach students around the around the world? Give reasons for your answer and provide two references with your response. What are benefits of both online learning and face to face learning ? Give two references with your answer. How does online learning and face to face learning affects students around the world? Give two references with your answer.arrow_forwardExplain Five reasons if computers should replace teachers. Provide three references with your answer. List three advantages and three disadvantages face to face learning and online learning may have on children. Provide two references with your answer.arrow_forwardYou were requested to design IP addresses for the following network using the address block 10.10.10.0/24. Specify an address and net mask for each network and router interfacearrow_forward
- For the following network, propose routing tables in each of the routers R1 to R5arrow_forwardFor the following network, propose routing tables in each of the routers R1 to R5arrow_forwardUsing R language. Here is the information link. http://www.cnachtsheim-text.csom.umn.edu/Kutner/Chapter%20%206%20Data%20Sets/CH06PR18.txtarrow_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