• Atomicity.
• Consistency.
• Isolation.
• Durability.

In the context of transaction processing, the acronym ACID refers to the four key properties of a transaction: atomicity, consistency, isolation, and durability. All changes to data are performed as if they are a single operation

The abbreviation ACID refers to the four key features of a transaction in the context of transaction processing: atomicity, consistency, isolation, and durability. All data changes are handled as though they were a single operation.