Description: Materialized View Logs are fundamental elements in database management systems that allow tracking changes in the underlying tables of materialized views. These logs are crucial for maintaining data integrity and currency, as they enable materialized views to synchronize with modifications made to the original tables. They store information about updates, inserts, and deletions occurring in the base tables, facilitating the efficient updating of materialized views without the need to recalculate all data from scratch. This feature is especially valuable in data analysis environments, where speed and accuracy are essential. Materialized view logs not only optimize query performance but also reduce system load, allowing users to access up-to-date information more quickly and efficiently. In summary, these logs are a key tool for data management, ensuring that materialized views accurately reflect the current state of the underlying tables.