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Consider three transactions: T1, T2, and T3. S: W1(A); R2(A);W3(B); W2(A);W1(A); R2(C); R3(B); R3(A); W3(B); C1;C2;C3 a) Draw the precedence graph for the schedule. Is the schedule conflict- serializable? b)  Is the schedule recoverable?

Consider three transactions: T1, T2, and T3. S: W1(A); R2(A);W3(B); W2(A);W1(A); R2(C); R3(B); R3(A); W3(B); C1;C2;C3 a) Draw the precedence graph for the schedule. Is the schedule conflict- serializable? b)  Is the schedule recoverable?

Database Systems: Design, Implementation, & Management
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 7P
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Consider three transactions: T1, T2, and T3.

S: W1(A); R2(A);W3(B); W2(A);W1(A); R2(C); R3(B); R3(A); W3(B); C1;C2;C3

a) Draw the precedence graph for the schedule. Is the schedule conflict- serializable?

b)  Is the schedule recoverable?

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