Database Isolation
Database isolation is a fundamental property in database systems that ensures concurrent transactions execute without interfering with each other, maintaining data consistency and integrity. It defines how changes made by one transaction are visible to other transactions, preventing issues like dirty reads, non-repeatable reads, and phantom reads. This concept is typically implemented through isolation levels, which trade off between consistency and performance.
Developers should learn database isolation to design robust applications that handle concurrent data access safely, especially in multi-user environments like web applications or financial systems. It is crucial when implementing transactions that require atomicity and consistency, such as in e-commerce checkouts or banking operations, to avoid data anomalies and ensure reliable outcomes.