ACID Transactions

ACID transactions ensure reliable database operations with four key principles: **Atomicity** guarantees that all parts of a transaction succeed or fail together; **Consistency** ensures the database remains valid before and after the transaction; **Isolation** keeps transactions separate, so they don't interfere with each other; and **Durability** ensures that once a transaction is complete, its results are permanent, even in the case of a system failure. Together, these principles maintain data integrity and reliability in databases, making sure that critical operations occur smoothly and accurately.