ACID

ACID guarantees data validity in transactions

ACID properties ensure reliable database transactions. Atomicity guarantees that a transaction is all-or-nothing, maintaining data integrity even if errors occur. Consistency ensures that only valid data is written to the database, preserving its rules and constraints. Isolation guarantees that concurrent transactions do not interfere with each other, maintaining data accuracy.

Example

A bank transfer transaction is an example where ACID properties ensure atomicity (either both debiting and crediting occur, or neither), consistency (the total amount remains unchanged), isolation (no other transactions can interfere), and durability (once completed, the transaction is permanent).

Remember this

Understanding ACID guarantees is essential for designing robust database systems that maintain data integrity and consistency.

Text adapted from Wikipedia, licensed under CC BY-SA 4.0.

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