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Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900

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BuyFindarrow_forward

Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900
Chapter 10, Problem 12RQ
Textbook Problem
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What is an exclusive lock, and under what circumstances is it granted?

Explanation of Solution

Exclusive lock:

It is a lock type which is used to enforce the concurrency control of the transaction. Exclusive lock is issued when the data item want to update and not processed by any of the transaction. It does not allow other transactions to access the database.

Circumstances of exclusive lock to be granted:

  • The exclusive lock exists in the object when the access of data item specifically reserved for a transaction...

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