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Consider the schedule below. Here, R(·) and W(·) stands for 'Read' and Write', respectively. T; represents a transaction, and t; represents the time slot. t2 t3 t4 t5 to t7 ts to T1 R(Y) W(X) T2 R(X) T3 W(Y) R(Z) T4 W(X) R(Y) R(X) T5 W(Y) Figure 2: Schedule of Q5(a). Give the complete precedence graph of this schedule and label the data item(s) for each edge, determine if this is a conflict serializable graph?

Consider the schedule below. Here, R(·) and W(·) stands for 'Read' and Write', respectively. T; represents a transaction, and t; represents the time slot. t2 t3 t4 t5 to t7 ts to T1 R(Y) W(X) T2 R(X) T3 W(Y) R(Z) T4 W(X) R(Y) R(X) T5 W(Y) Figure 2: Schedule of Q5(a). Give the complete precedence graph of this schedule and label the data item(s) for each edge, determine if this is a conflict serializable graph?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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(a) 'Write', respectively. T; represents a transaction, and t; represents the time slot. Consider the schedule below. Here, R(-) and W(·) stands for 'Read' and t2 t3 t4 t5 to t7 ts to T1 R(Y) W(X) T2 R(X) T3 W(Y) R(Z) T4 W(X) R(Y) R(X) T5 W(Y) Figure 2: Schedule of Q5(a). Give the complete precedence graph of this schedule and label the data item(s) for each edge, determine if this is a conflict serializable graph?
Transcribed Image Text:(a) 'Write', respectively. T; represents a transaction, and t; represents the time slot. Consider the schedule below. Here, R(-) and W(·) stands for 'Read' and t2 t3 t4 t5 to t7 ts to T1 R(Y) W(X) T2 R(X) T3 W(Y) R(Z) T4 W(X) R(Y) R(X) T5 W(Y) Figure 2: Schedule of Q5(a). Give the complete precedence graph of this schedule and label the data item(s) for each edge, determine if this is a conflict serializable graph?
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