DS0-001 Database Structures And SQL Practice Question
An analyst is writing an SQL query to retrieve total sales per region, but the result must only show regions with more than 100 transactions. Which clause is required?
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
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HAVING
The HAVING clause is used to filter groups created by the GROUP BY clause, whereas WHERE filters individual rows.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
HAVING
Why this is correct
HAVING is the correct clause to filter aggregated group results.
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ORDER BY
Why it's wrong here
ORDER BY sorts the result set.
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LIMIT
Why it's wrong here
LIMIT restricts the number of returned rows.
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WHERE
Why it's wrong here
WHERE filters rows before aggregation.
About these practice questions
Courseiva writes every DS0-001 question from scratch — 216 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CompTIA exam blueprint
This DS0-001 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DS0-001 exam.