Basic Principles of ACID Transactions in RDBMS

ACID (Atomicity, Consistency, Isolation, Durability) transactions are fundamental principles in relational database management systems (RDBMS) to ensure data integrity and reliability.

Atomicity:

Atomicity refers to the idea that a transaction is treated as a single unit of work, either all of its operations are completed successfully or none of them are. This helps maintain data consistency and integrity.

Consistency:

Consistency ensures that the database remains in a valid state before and after the transaction. Any changes made by a transaction must adhere to the defined rules and constraints of the database.

Isolation:

Isolation ensures that multiple transactions can run concurrently without interfering with each other. Each transaction should be executed as if it is the only one running on the system to prevent data corruption.

Durability:

Durability guarantees that once a transaction is committed, its changes are permanently saved in the database even in the event of a system failure. This ensures that the data remains intact and recoverable.

By adhering to these ACID principles, RDBMS systems can maintain data integrity, consistency, and reliability, making them suitable for critical and transactional applications.