Aggregate functions in SQL are crucial as they compute a single value from multiple entries, aiding data analysis and insights from large datasets.
By utilizing aggregate functions like AVG, COUNT, and SUM, users can efficiently analyze large datasets, producing essential statistics for informed decision-making.
Understanding column references in SQL aggregate functions is vital as it allows users to specify the data needed for calculations, enhancing clarity in code.
Aggregate functions ignore NULL values in calculations, ensuring that the results reflect only the existing data, except for the COUNT function which counts all entries.
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