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What is ACID? -Helpinterivew


ACID stands for Atomic, Consistent, Isolation and Durable

Atomic (A) - A transaction consists of many operations. All operation in transaction succeeds or every operation is rolled back.

Consistent(C) - After transaction completes, database must be in consistent state. A transaction can bring one consistent state to another consistent state.

Isolation (I) - There can be many transactions in the system executing concurrently but each transaction execution is isolated from another and looks like they were executed in sequential order.

Durable(D) - The result of applying transaction is permanent even in the presence of failures.

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