Question 3: Transactions and Loggings Assume there are three transactions, T1, T2 and T3. The initial value of A is 0. • Tị : A= A +2 T2 : A = A ×2 • T3 : A=A² 1.Suppose the concurrency is enabled in the system, please provide all the possible values of A and the corresponding schedules. 2.Please draw a figure to provide a serializable schedule with 2PL such that the result of this schedule is A = 16. 3.Please draw a figure to provide a NON-serializable schedule with 2PL such that the result of this schedule is A = 0. 4. Please draw a wait-for graph to explain that the above schedule that will generate a deadlock (shared, exclusive locks).

Q: 9. (a) Following figure shows the log corresponding to a particular schedule at the point of a…

A: Actually, given Transactions T1,T2,T3and T4.

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A: Below i have answered:

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Q: QUESTION 9 What are the conflicts and implied transaction precedence for the following schedule: S:…

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A: What are the conflicts and implied transaction precedence for the following schedule: S: r1(A);…

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A:

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Q: 132. A concurrency-control policy such as this one leads to ______ performance, since it forces…

A: Please find the answer to the above question below:

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A:

Q: Consider a failure that occurs during 2PC for a transaction. For each possible failure that you…

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A: Below are transaction with minimum support of 60% using Apriori Algorithm.

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Q: Since every conflict-serializable schedule is view serializable, why do we emphasize conflict…

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A:

Q: i. Is this concurrent schedule allowed under Two-Phase Locking (2PL) with isolation? 11. Is this…

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A: Please see the next step for solution:-

Q: QUESTION 7 Locking grant distributed serializability Yes O No

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A:

Q: What is concurrency control? State and explain any 4 concurrency controls protocols and examine the…

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A: Given To know all about deadlock.

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A: I have answered the question in step 2.

Q: Answer the following by giving proper justification and examples: (i) Are all serializable schedules…

A: The answer is