What does the Projection operation do?

The Projection operation in Mendix is a powerful tool that allows you to specify which attributes of an object you want to include in the result set. Instead of pulling in all attributes of an object, you can select specific ones, thereby optimizing data handling and improving performance. This ability to tailor the output to only the necessary attributes is particularly valuable in scenarios where you want to minimize data transfer and processing, making applications more efficient.

This operation is essential when you deal with complex data structures or large datasets, as it enhances clarity and focus on the required information. By selecting only the relevant attributes, you can streamline data processing and provide better performance for your users.

Other operations related to data handling, like merging multiple tables, filtering rows based on certain criteria, or calculating totals, serve different purposes and do not reflect the function of Projection. These operations typically involve more complex data manipulation rather than focusing on attribute selection for specific outcomes.