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In the context of concurrency control, what does 'locking' refer to?

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Question: In the context of concurrency control, what does \'locking\' refer to?

Options:

  1. Preventing data from being accessed by multiple users simultaneously
  2. Encrypting data for security
  3. Creating backups of the database
  4. Indexing data for faster retrieval

Correct Answer: Preventing data from being accessed by multiple users simultaneously

Solution:

Locking refers to preventing data from being accessed by multiple users simultaneously to maintain data integrity during transactions.

In the context of concurrency control, what does 'locking' refer to?

Practice Questions

Q1
In the context of concurrency control, what does 'locking' refer to?
  1. Preventing data from being accessed by multiple users simultaneously
  2. Encrypting data for security
  3. Creating backups of the database
  4. Indexing data for faster retrieval

Questions & Step-by-Step Solutions

In the context of concurrency control, what does 'locking' refer to?
  • Step 1: Understand that in a database, multiple users can try to access or change the same data at the same time.
  • Step 2: Realize that if two users change the same data at the same time, it can cause problems, like losing information or creating errors.
  • Step 3: Learn that 'locking' is a method used to prevent this problem by making sure that only one user can access or change the data at a time.
  • Step 4: Know that when a user locks data, other users have to wait until the lock is released before they can access or change that data.
  • Step 5: Remember that this process helps keep the data accurate and reliable during transactions.
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