Why is concurrency control important in databases?

Why is concurrency control important in databases?

Concurrency control is crucial in databases to ensure data integrity and consistency when multiple users access the database simultaneously.

Can you explain how it prevents data anomalies?

Sure! Concurrency control prevents anomalies like lost updates, dirty reads, and uncommitted data by managing how transactions are executed.

What are some common methods of concurrency control?

Common methods include locking protocols, timestamp ordering, and optimistic concurrency control.

How does locking work in concurrency control?

Locking works by restricting access to data items during a transaction, ensuring that only one transaction can modify the data at a time.

What happens if two transactions try to access the same data?

If two transactions try to access the same data, one will be blocked until the other completes, preventing conflicts and ensuring data integrity.