Strict Two-Phase Locking: Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol. After acquiring the locks in the first phase, the execution of the transaction takes place normally. However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution. Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

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Answer 1

Question

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

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Answer 2

Question

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

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Answer 3

Question

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

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Answer 4

Question

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

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Answer 5

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

Answer 6

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

Answer 7

Chapter 18, Problem 18E

Program Plan Intro

Strict Two-Phase Locking:

Similar to plain Two-Phase Locking, the locks are acquired and released in two phases in Strict Two-Phase locking protocol.

After acquiring the locks in the first phase, the execution of the transaction takes place normally.

However, unlike Two-Phase Locking, Strict Two-Phase locking protocol does not release the lock after the execution.

Strict Two-Phase locking keep holds of the lock until the commit point and at the same time, it releases all the locks.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 18 - Prob. 1PE Ch. 18 - Prob. 2PE Ch. 18 - Prob. 3PE Ch. 18 - Prob. 4PE Ch. 18 - Prob. 5PE Ch. 18 - Prob. 6PE Ch. 18 - Prob. 7PE Ch. 18 - Prob. 8PE Ch. 18 - Prob. 9PE Ch. 18 - Prob. 10PE

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Chapter 18 Solutions