Which statement about aggregates and the SQL tool is correct?

The correct statement emphasizes the capabilities of the SQL tool, particularly its ability to handle more complex queries, such as those that include subqueries. Subqueries allow you to write a query within another query, providing flexibility in data retrieval and manipulation that is essential in various use cases, especially when the data relationships are intricate.

Aggregates, on the other hand, are designed for simpler queries with a focus on performance and ease of use within the OutSystems environment. While they allow for the definition of relationships and straightforward data retrieval, they do not support the same complexity as SQL, particularly with subqueries.

This distinction illustrates that while aggregates streamline database interactions and are useful for basic queries and visualizations, the SQL tool offers advanced capabilities required for complex querying. Therefore, knowing that the SQL tool can handle subqueries is critical for developers when deciding which method to use based on the needs of their application.