What are transaction properties denoted by the acronym ACID?

ACID is a set of properties that guarantee reliable transactions in databases:

• Atomicity: a transaction is completed in full or not at all. If something goes wrong, all changes are rolled back.
• Consistency: after a transaction completes, the database remains in a correct state, satisfying all rules and constraints.
• Isolation: concurrent transactions do not affect each other, as if they were executed sequentially.
• Durability: after a transaction is committed, changes are permanently saved, even in case of system failures.

These properties ensure reliability and predictability in data handling.