ACID Transactions

A behavior of Relational Database
Perplexity AI explains ACID Transactions ACID transactions are a foundational concept in relational databases, ensuring reliability and consistency in data operations. The acronym stands for Atomicity, Consistency, Isolation, and Durability, each addressing a critical aspect of transaction management:
  1. Atomicity: Ensures that a transaction is treated as a single, indivisible unit. If any part of the transaction fails, the entire operation is rolled back, preventing partial updates and maintaining database integrity[1][3].
  2. Consistency: Guarantees that a transaction transforms the database from one valid state to another while adhering to all predefined rules and constraints. This ensures the database remains accurate and reliable[2][3].
  3. Isolation: Ensures that concurrent transactions do not interfere with each other. Each transaction appears to execute independently, avoiding conflicts in high-concurrency environments[1][3].
  4. Durability: Ensures that once a transaction is committed, its changes are permanently stored, even in the event of system failures[1][3].
Experts assess ACID properties when evaluating databases because they are critical for maintaining data integrity, especially in applications like banking or e-commerce where accuracy and reliability are paramount. While relational databases typically implement ACID fully, some NoSQL systems may relax these guarantees to achieve higher scalability and performance[4][6].
Sources [1] ACID Transactions - Redis https://redis.io/glossary/acid-transactions/ [2] What Is the ACID Test in Database Security? - Blue Goat Cyber https://bluegoatcyber.com/blog/what-is-the-acid-test-in-database-security/ [3] What Are ACID Transactions? A Complete Guide for Beginners https://www.datacamp.com/blog/acid-transactions [4] ACID Transactions: The Cornerstone of Database Integrity - Yugabyte https://www.yugabyte.com/acid/acid-transactions/ [5] Understanding and Implementing ACID Properties in Databases. https://www.xcubelabs.com/blog/product-engineering-blog/understanding-and-implementing-acid-properties-in-databases/ [6] What Is Database ACID? - Pure Storage https://www.purestorage.com/knowledge/what-is-database-acid.html [7] ACID - Wikipedia https://en.wikipedia.org/wiki/ACID [8] Quiz & Worksheet - ACID Properties in DBMS - Study.com https://study.com/academy/practice/quiz-worksheet-acid-properties-in-dbms.html [9] An introduction to ACID guarantees and transaction processing https://www.ververica.com/blog/an-introduction-to-acid-guarantees-and-transaction-processing