What is pessimistic concurrency and how does it work?
An example of an AI chatbot conversation about pessimistic concurrency in database management.
What is pessimistic concurrency and how does it work?
Pessimistic concurrency is a strategy where a database locks a record for editing, preventing other transactions from accessing it until the lock is released.
Can you give me an example of when to use pessimistic concurrency?
Sure! It's useful in scenarios where data integrity is critical, like in banking systems, where multiple transactions might affect the same account.
What are the downsides of using pessimistic concurrency?
The main downsides include reduced performance due to locking and potential deadlocks if not managed properly.
How does it compare to optimistic concurrency?
Unlike pessimistic concurrency, optimistic concurrency allows multiple transactions to proceed without locking, checking for conflicts only at commit time.
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