In the Schedule below determine the undo and redo and rollback transaction
In the Schedule below determine the undo and redo and rollback transaction
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...
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Question
![Question Four
In the Schedule below determine theundo and redo and rollback transaction
LSN
Log
00
UpdateT1 writes P5
05
Update T2 writes P3
10
T2 commit
15
T2 Endupdate
20
Update T3 writes P1
Update: T3 writes P3
T4 read P5
Update: T4 write P5
T4 commit
25
30
35
40
45
T4 Endupdate
CRASH](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa44ce79d-1ac1-4663-894d-6b072208590b%2F42db608c-f0d0-4210-890d-96024b62f835%2Fzspzwb_processed.png&w=3840&q=75)
Transcribed Image Text:Question Four
In the Schedule below determine theundo and redo and rollback transaction
LSN
Log
00
UpdateT1 writes P5
05
Update T2 writes P3
10
T2 commit
15
T2 Endupdate
20
Update T3 writes P1
Update: T3 writes P3
T4 read P5
Update: T4 write P5
T4 commit
25
30
35
40
45
T4 Endupdate
CRASH
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