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What is the benefit of using a SUM query over iterating through entity objects to calculate a total value?

A SUM query offloads calculations to the database, minimizing memory usage and improving performance.

Using a SUM query ensures that your code is immune to SQL injection attacks.

Iterating over entity objects allows for more expressive code which is always better regardless of the data size.

Iterating through entity objects is faster when dealing with very small data sets because it uses less computational power.