What is the difference between optimistic and pessimistic locking?
An example of an AI chatbot conversation about locking mechanisms in database management.
Can you explain the difference between optimistic and pessimistic locking?
Sure! Optimistic locking assumes that multiple transactions can complete without affecting each other, while pessimistic locking assumes conflicts will occur and locks resources to prevent them.
When would I use optimistic locking over pessimistic locking?
You'd use optimistic locking in scenarios with low contention, where conflicts are rare. It's more efficient in such cases.
What are the downsides of using pessimistic locking?
Pessimistic locking can lead to reduced concurrency and performance issues, as it locks resources even when not needed.
Can you give an example of each type of locking?
Certainly! In optimistic locking, a version number is checked before committing changes. In pessimistic locking, a record is locked for editing until the transaction is complete.
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