What is the impact of concurrency on database performance?
Concurrency in databases refers to the ability to handle multiple operations simultaneously. It can significantly improve performance by allowing multiple users to access and modify data at the same time.
Can you explain how locking mechanisms affect concurrency?
Locking mechanisms are used to manage access to data. They can prevent conflicts but may also lead to bottlenecks if too many transactions are waiting for locks.
What are some strategies to improve concurrency?
Strategies include using optimistic concurrency control, partitioning data, and implementing proper indexing to reduce lock contention.
How does concurrency affect transaction isolation levels?
Higher isolation levels can reduce concurrency by preventing other transactions from accessing data until the current transaction is complete, which can lead to decreased performance.
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