ACIDtransaktioner

ACID transactions are a fundamental concept in database management systems, ensuring reliable processing of database transactions. The acronym ACID stands for Atomicity, Consistency, Isolation, and Durability. Atomicity guarantees that each transaction is treated as a single "unit," which either completes entirely or fails completely, leaving the database unchanged. Consistency ensures that a transaction brings the database from one valid state to another, maintaining predefined rules. Isolation ensures that concurrent transactions do not interfere with each other, providing the illusion that they are executed sequentially. Durability guarantees that once a transaction has been committed, it will remain so, even in the event of a system failure. ACID transactions are crucial for maintaining data integrity and reliability in various applications, from financial systems to e-commerce platforms. However, they can sometimes lead to performance issues, especially in high-concurrency environments, prompting the development of alternative models like BASE (Basically Available, Soft state, Eventual consistency).