What is pessimistic concurrency control in databases?
An example of an AI chatbot conversation about pessimistic concurrency control in databases.
What is pessimistic concurrency control in databases?
Pessimistic concurrency control is a method used in databases to prevent conflicts by locking resources when they are accessed.
How does it differ from optimistic concurrency control?
Unlike optimistic concurrency control, which allows multiple transactions to proceed without locking, pessimistic control locks resources to avoid conflicts.
What are the advantages of using pessimistic concurrency control?
The main advantages include reduced risk of data inconsistency and better handling of high-contention scenarios.
Are there any downsides to this approach?
Yes, it can lead to decreased performance due to waiting for locks, and it may cause deadlocks if not managed properly.
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