ACIDtulajdonságokkal

ACID is an acronym representing a set of properties that guarantee reliable processing of database transactions. These properties are Atomicity, Consistency, Isolation, and Durability. Atomicity ensures that a transaction is treated as a single, indivisible unit of work. Either all operations within the transaction are completed successfully, or none of them are. If any part of the transaction fails, the entire transaction is rolled back to its original state. Consistency means that a transaction brings the database from one valid state to another. It ensures that all database rules and constraints are maintained, preventing data corruption. Isolation guarantees that concurrent transactions do not interfere with each other. Each transaction appears to execute as if it were the only transaction running, preventing issues like dirty reads, non-repeatable reads, and phantom reads. Durability ensures that once a transaction has been committed, it will remain so, even in the event of a system failure, such as a power outage or crash. This is typically achieved through mechanisms like transaction logs. Adhering to ACID properties is crucial for maintaining data integrity and reliability, particularly in critical applications like financial systems and e-commerce platforms. Database systems that support ACID transactions are often referred to as ACID-compliant databases.