Does changing the column order in the GROUP BY clause (e.g. GROUP BY a, b vs GROUP BY b, a) alter the calculated aggregates?

Yes, it changes the sums and counts.

No, the aggregate numbers and groups remain identical.

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QUESTION 01 OF 02

Multi-column GROUP BY

Quiz for lesson: Multi-column GROUP BY

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If a table has 4 distinct states and 3 distinct loyalty tiers, what is the maximum number of rows returned by GROUP BY state, loyalty_tier?

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This interactive assessment is designed to test your understanding of Multi-column GROUP BY. Whether you are a beginner looking to grasp the basics or an experienced professional aiming to refine your skills, quizzes are an excellent way to validate your knowledge and identify areas for improvement.

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