Lock: Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Answer 1

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Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Using a specific example (different from what the textbook discusses), explain the use of binary and shared/exclusive locks in a DBMS (in your own words).

Can Surrogate Keys be created and managed via the DBMS? Explain how.

For more clarification, could you please explain: Using a DBMS with several users at once 1. DBMS backup and recovery 2.

Answer 2

Question

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Answer 3

Question

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Answer 4

Question

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Answer 5

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

Answer 6

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

Answer 7

Chapter 10, Problem 4P

Program Plan Intro

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

Answer 8

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Answer 9

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Answer 10

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Answer 11

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

Lock: Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

Solution Summary: The author explains the two types of lock: binary and shared/exclusive locks.

Concept explainers

Lock:

Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.

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Chapter 10 Solutions