Homework Help is Here – Start Your Trial Now!
Engineering
Computer Engineering
{T1,T2,T3} ->  Transactions {A,B,C,D,E,F,G} -> Database objects L(x) -> X locking X object. U(x) -> Unlocking X object. R -> Read & W -> Write     Can we transform below transaction schedule to serial action plan ? Show with Presedence Graph method.   If yes what are the equal serial plans ? (as lock mechanism use Strict-2PL)

{T1,T2,T3} ->  Transactions {A,B,C,D,E,F,G} -> Database objects L(x) -> X locking X object. U(x) -> Unlocking X object. R -> Read & W -> Write     Can we transform below transaction schedule to serial action plan ? Show with Presedence Graph method.   If yes what are the equal serial plans ? (as lock mechanism use Strict-2PL)

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
See similar textbooks
icon
Related questions
Question

{T1,T2,T3} ->  Transactions

{A,B,C,D,E,F,G} -> Database objects

L(x) -> X locking X object. U(x) -> Unlocking X object. R -> Read & W -> Write

 

 

  1. Can we transform below transaction schedule to serial action plan ? Show with Presedence Graph method.

 

  1. If yes what are the equal serial plans ? (as lock mechanism use Strict-2PL)

 

T1 L(A); R(A); L(B); R(B); L(C); R(C); W(A); U(A); L(D); R(D); W(B); U(B); T2 T3 L(B); R(B); L(E); R(E); W(D); U(D); W(C); U(C); L(E); L(F); R(F); W(F); U(F); L(G); R(G); W(E); U(E); L(E); R(E); W(G); U(G); W(B); U(B); W(E); U(E);
Transcribed Image Text:T1 L(A); R(A); L(B); R(B); L(C); R(C); W(A); U(A); L(D); R(D); W(B); U(B); T2 T3 L(B); R(B); L(E); R(E); W(D); U(D); W(C); U(C); L(E); L(F); R(F); W(F); U(F); L(G); R(G); W(E); U(E); L(E); R(E); W(G); U(G); W(B); U(B); W(E); U(E);
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY
SEE MORE TEXTBOOKS