ACID (Atomicity, Consistency, Isolation, Durability) is the cornerstone of reliable database transactions. This article provides a concise introduction to these key properties, explaining how they help maintain data integrity in databases.

ACID properties with MySQL

Atomicity: MySQL uses COMMIT and ROLLBACK commands to ensure that transactions are executed completely or not at all, maintaining atomicity.

Consistency: MySQL’s logging system captures all database changes, ensuring that the database can be restored to a consistent state after a failure.

Isolation: MySQL implements row-level locking to maintain isolation between concurrent transactions, preventing conflicts.

Durability: Durability is achieved through MySQL’s log files, which ensure that once a transaction is committed, the changes are permanent.

FAQ

What is ACID?
ACID refers to a set of four properties that guarantee the reliability of database transactions.

Why are ACID properties important?
These properties are crucial for ensuring that databases remain consistent and reliable, even when a transaction is interrupted.

How does MySQL enforce ACID?
MySQL enforces ACID properties through commands like COMMIT, ROLLBACK, and a robust logging mechanism.

How does ACID differ from BASE?
ACID focuses on strict data integrity, while BASE, used in NoSQL databases, emphasizes availability and eventual consistency.

Conclusion

Understanding ACID is vital for reliable database management. For more details, read the article ACID in Database Systems: All You Need to Know.