What does the ACID abbreviation stand for?

ACID is an acronym describing four key properties of transactions in database management systems:

• Atomicity — a transaction is completed in its entirety or not at all.
• Consistency — after a transaction, the database remains in a correct state, satisfying all rules and constraints.
• Isolation — concurrent transactions do not affect each other, and their execution results are equivalent to some sequential execution.
• Durability — once a transaction is committed, its changes are saved and not lost even in case of failures.

These properties ensure reliability and predictability in data handling.