What statement accurately describes the role of a key in a Caboodle table's structure?

A key in a Caboodle table’s structure is essential for ensuring data integrity and organization. Its primary function is to identify unique records within the table. This uniqueness is crucial for differentiating one record from another, especially when dealing with large datasets where multiple entries might exist. By designating a specific key, such as a primary key, the structure allows for efficient data retrieval, updates, and management.

In contrast, other aspects related to database relationships and data tracking are handled separately. For instance, while keys can facilitate relationships between tables, that is more about foreign keys and their role in establishing connections, rather than defining uniqueness in a single table. Similarly, tracking historical data or managing snapshots falls under different operations of a database that may not necessarily relate to the function of a key itself. Keys primarily serve the purpose of maintaining record uniqueness, which is fundamental to the overall integrity of database management systems.