What are the differences between pessimistic and optimistic concurrency control?
An example of an AI chatbot conversation about concurrency control methods in databases.
What are the differences between pessimistic and optimistic concurrency control?
Pessimistic concurrency control locks resources to prevent conflicts, while optimistic assumes conflicts are rare and checks before committing.
Can you give me an example of when to use each method?
Use pessimistic control in high-contention environments, like banking systems. Optimistic is better for low-contention scenarios, like collaborative editing.
What are the advantages and disadvantages of each approach?
Pessimistic control ensures data integrity but can lead to deadlocks. Optimistic control is more efficient but risks conflicts.
How do these methods impact performance?
Pessimistic control can slow down performance due to locking, while optimistic control generally offers better performance in low-conflict situations.
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