Transactions
A transaction is a fundamental concept in computer science and database management that represents a single logical unit of work, typically involving multiple operations that must be executed as an atomic, consistent, isolated, and durable (ACID) sequence. It ensures data integrity by grouping operations so that they either all succeed (commit) or all fail (rollback), preventing partial updates in systems like databases, distributed systems, and financial applications. Transactions are critical for maintaining reliability and consistency in environments where concurrent access or system failures could corrupt data.
Developers should learn and use transactions whenever they need to ensure data consistency and reliability in applications that involve multiple related operations, such as in database systems, banking software, e-commerce platforms, or any system handling critical data updates. They are essential for preventing data corruption in scenarios like concurrent user access, system crashes, or network failures, by enforcing the ACID properties to guarantee that operations are completed reliably or not at all.