Considering Aggregates and the SQL Tool, which of the following is the correct option?

The SQL Tool in OutSystems provides a flexible environment for constructing complex queries, including those that contain sub-queries, which are essentially queries nested within other queries. This capability allows developers to create more sophisticated data retrieval mechanisms that are not possible with Aggregates, as Aggregates are primarily designed for simpler data operations and are limited in certain advanced functionalities.

Sub-queries can be particularly useful when you need to filter or derive data based on other data sets, enabling more dynamic and tailored results. The ability to incorporate sub-queries significantly enhances the power of the SQL Tool, making it suitable for handling intricate situations where additional layers of data processing are necessary.

In contrast, while Aggregates can perform straightforward joins and fetch data from multiple tables, they lack the depth that the SQL Tool provides regarding nested queries. This differentiation highlights the advantages of using the SQL Tool when complex data manipulations are required.