- Consider a failure that occurs during 2PC for a transaction. For each possible failure, explain how 2PC ensures transaction atomicity despite the failure.

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A:

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A: Describe the process of the following situation with switch(config)

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A: answer is

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A: B)

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A: The answer for the above mentioned question is given in the following steps for your reference.

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A: Here's the solution:

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A:

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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.