ACID - Atomicity, Consistency, Isolation, and Durability

▪ Atomicity

All operations are executed successfully or everything fails and rollback together.

▪ Consistency

The data in the database is kept in a valid and consistent state, after any operations on data.

▪ Isolation

Separated transactions running concurrently and they can not interfere with each other.

▪ Durability

After a transaction is committed, the changes are stored durably, for example persisted in a database server.

▪ Example: Money transfer transaction. 

https://www.databricks.com/glossary/acid-transactions