What is ACID in the context of database transactions?Review LaterA protocol for secure data transmission.A programming language for database management.A set of properties that ensure transaction reliability.An encryption algorithm for data storage.

ACID refers to a set of properties that ensure transaction reliability in the context of database transactions. The acronym stands for Atomicity, Consistency, Isolation, and Durability.

1. Atomicity: This property ensures that a transaction is treated as a single, indivisible unit, which either succeeds completely, or fails completely. If any part of the transaction fails, the entire transaction fails and the database is left unchanged.

2. Consistency: This property ensures that a transaction brings the database from one valid state to another. The database should satisfy a certain set of predefined rules. Consistency is achieved by passing the system through a constraint validation which checks whether the transaction being executed maintains the consistency of the database or not.

3. Isolation: This property ensures that concurrent execution of transactions leaves the database in the same state that would have been obtained if the transactions were executed sequentially. In other words, each transaction is executed in a way that is isolated from other transactions.

4. Durability: This property ensures that once a transaction has been committed, it will remain committed even in the case of a system failure. This is usually achieved by storing the transaction into a non-volatile memory.

So, ACID is not