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Computer Science

What are the advantages of using a rigorous two-phase locking mechanism? What disadvantages result

Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter10: Transaction Management And Concurrency Control

Section: Chapter Questions

Problem 9RQ

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Concept explainers

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.

Question

What are the advantages of using a rigorous two-phase locking mechanism? What disadvantages result?

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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What are the necessary conditions that must be met in order for Deadlock Prevention to take effect?
Are there any requirements that must be met before Deadlock Prevention may function as intended?
What prerequisites must be satisfied for Deadlock Prevention to function?
In order for Deadlock Prevention to work properly, what prerequisites must first be satisfied?
In order for Deadlock Prevention to work properly, what prerequisites need to be satisfied?
The question is, under what situations is it less expensive to avoid deadlocks than to allow them to occur and then discover them after they have occurred?
For Deadlock Prevention to work, what prerequisites must be met?
To what extent may Deadlock Prevention only function if certain circumstances are met?
One of the methods that could be used for handling deadlocks, is ensuring that the system will never enter a deadlock state. And that could be achieved by: 1) Deadlock Prevention, 2) Deadlock Avoidance. Explains the differences between these two mechanisms in your own language.
Given the final analysis of deadlock prevention strategy, which of the four deadlock conditions does deadlock prevention resolve? Group of answer choices *No preemption *Mutual exclusion *Circular Wait *Hold and Wait select one
The issue that has to be answered is under what conditions is it less expensive to avoid deadlocks than to allow them to occur and then identify them after they have taken place?
Under what circumstances is avoiding deadlock less expensive than allowing deadlocks to occur and subsequently detecting them?