SQL Transactions - Transaction Basics
Quick Answer
SQL transactions are sequences of operations performed as a single logical unit of work, ensuring data integrity through ACID properties. They allow you to commit or rollback changes, maintaining consistency in databases.
Learning Objectives
- Understand what a transaction is in SQL and why it is important.
- Learn the ACID properties that guarantee reliable transactions.
- Know how to use transaction control commands like BEGIN, COMMIT, and ROLLBACK.
Introduction
In SQL, a transaction is a fundamental concept that ensures a set of database operations either all succeed or all fail together.
This guarantees data consistency and integrity, especially in multi-user environments where concurrent access occurs.
A transaction is a unit of work that must be either entirely completed or entirely failed.





