DA0-002 Data Acquisition and Preparation Practice Question
An analyst needs to aggregate sales data by region and product, then sort the results by total sales in descending order. Which SQL clauses are required? (Select THREE).
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GROUP BY
GROUP BY is needed to aggregate, ORDER BY to sort, and DESC for descending order. SUM is an aggregate function but not a clause.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
GROUP BY
Why this is correct
Required to define groups for aggregation.
- ✗
HAVING
Why it's wrong here
HAVING filters groups, not required for sorting.
- ✗
SUM
Why it's wrong here
SUM is a function, not a clause; it may be used but not required as a clause.
- ✓
ORDER BY
Why this is correct
Required to sort results.
- ✓
DESC
Why this is correct
Specifies descending order in ORDER BY.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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