Can you explain what the acronym ACID means in the context of database transactions?

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

• Atomicity: the transaction is completed in full or not at all.
• Consistency: after the transaction, 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, its changes are saved even in case of system failures.

These properties ensure data integrity and correctness of operations in a multi-user environment.