ACID Property

Sets of database operations have the ACID property if they have the following properties:

• All operations always successfully complete or as if all never attempted (atomicity).
• All beginning and ending database states are always valid (consistency).
• All operations never depend on other operations in process that are not in the set (isolation).
• All ending database states always survive system failures (durability).

Sets of database operations that have the ACID property are referred to as database transactions.