Describe the ACID properties in the context of ... - SS3 ICT Database Question

ACID stands for Atomicity, Consistency, Isolation, and Durability, and they are critical for ensuring the reliability of database transactions:

 

Atomicity: This property ensures that a transaction is treated as a single unit of work. It either completes entirely or leaves no trace if it fails, preventing partial changes to the database, which could lead to inconsistencies.

 

Consistency: It guarantees that a transaction brings the database from one consistent state to another. It enforces data integrity constraints, ensuring that only valid data changes occur.

 

Isolation: Isolation ensures that concurrent transactions do not interfere with each other. Each transaction appears to be executed in isolation from others, preventing data corruption due to simultaneous access.

 

Durability: Durability guarantees that once a transaction is committed, its effects are permanent and survive system failures. It ensures that data changes are not lost.

 

These properties collectively provide data reliability and integrity, making them essential for database systems.