Concurrency Control The following questions focus on isolation and concurrency control. They use the notations for schedules seen in class. Is the following schedule conflict - serializable? R1(A) W2(A) W3(A) R2(B) W3(C) R2(C) C1 C2 C3

Concurrency Control The following questions focus on isolation and concurrency control. They use the notations for schedules seen in class. Is the following schedule conflict - serializable? R1(A) W2(A) W3(A) R2(B) W3(C) R2(C) C1 C2 C3

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter13: Handling Events

Section: Chapter Questions

Problem 8RQ

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Concept explainers

Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.

Question

Concurrency Control

The following questions focus on isolation and concurrency control. They use the notations for schedules seen in class.

Is the following schedule conflict - serializable?

R1(A) W2(A) W3(A) R2(B) W3(C) R2(C) C1 C2 C3

True False

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