@GeneratedValue

@GeneratedValue is an annotation used in programming, specifically with Java's persistence framework, to automatically generate and assign unique identifiers (like IDs) to database records when they are created. Instead of manually specifying an ID for each new entry, this tool handles the process behind the scenes, ensuring every record has a distinct and consistent identifier. This simplifies data management, prevents duplication, and maintains data integrity. Essentially, @GeneratedValue streamlines the process of assigning unique IDs, making database operations more efficient and less error-prone.