- A
The anchor member is the first part of the CTE that does not reference the CTE itself
The anchor member is the non-recursive initial query.
- B
Recursive CTEs cannot be used to generate a series of numbers
Why wrong: They can be used to generate sequences, like numbers or dates.
- C
A recursive CTE must use the keyword RECURSIVE in the WITH clause
Most SQL dialects require RECURSIVE for recursive CTEs.
- D
The recursive member cannot reference the CTE name
Why wrong: The recursive member must reference the CTE name to achieve recursion.
- E
UNION ALL is typically used to combine the anchor and recursive members
UNION ALL is standard for recursive CTEs.
Question 424 of 1,000
DA0-001 Mining Data Practice Question
This DA0-001 practice question tests your understanding of mining data. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A data analyst uses a Common Table Expression (CTE) to query hierarchical employee data (manager_id references employee_id). Which THREE statements about recursive CTEs are correct? (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
✓
The anchor member is the first part of the CTE that does not reference the CTE itself
Recursive CTEs require the WITH RECURSIVE clause (or WITH in some DBMS that imply recursion). The UNION ALL is typical to combine anchor and recursive members. Anchor member is the starting set; recursive member references the CTE itself. The anchor member is defined before the recursive member.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The anchor member is the first part of the CTE that does not reference the CTE itself
Why this is correct
The anchor member is the non-recursive initial query.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Recursive CTEs cannot be used to generate a series of numbers
Why it's wrong here
They can be used to generate sequences, like numbers or dates.
- ✓
A recursive CTE must use the keyword RECURSIVE in the WITH clause
Why this is correct
Most SQL dialects require RECURSIVE for recursive CTEs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The recursive member cannot reference the CTE name
Why it's wrong here
The recursive member must reference the CTE name to achieve recursion.
- ✓
UNION ALL is typically used to combine the anchor and recursive members
Why this is correct
UNION ALL is standard for recursive CTEs.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the DA0-001 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which DA0-001 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this DA0-001 question test?
Mining Data — This question tests Mining Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The anchor member is the first part of the CTE that does not reference the CTE itself — Recursive CTEs require the WITH RECURSIVE clause (or WITH in some DBMS that imply recursion). The UNION ALL is typical to combine anchor and recursive members. Anchor member is the starting set; recursive member references the CTE itself. The anchor member is defined before the recursive member.
What should I do if I get this DA0-001 question wrong?
Identify which DA0-001 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This DA0-001 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 DA0-001 exam.
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