What are the challenges of maintaining transactional consistency in databases?

What are the challenges of maintaining transactional consistency in databases?

Transactional consistency ensures that all database transactions are completed successfully. Challenges include handling concurrent transactions, ensuring isolation, and managing failures.

Can you explain what isolation means in this context?

Isolation refers to the property that ensures transactions are executed independently without interference. This is crucial to prevent issues like dirty reads or lost updates.

What are some strategies to achieve better transactional consistency?

Some strategies include using locking mechanisms, implementing optimistic concurrency control, and utilizing distributed transactions.

How do distributed systems complicate transactional consistency?

Distributed systems face challenges like network latency, partial failures, and the need for consensus among nodes, making consistency harder to achieve.