DA0-002 Data Acquisition and Preparation Practice Question
A data analyst is using a recursive CTE to traverse a hierarchical organizational chart. Which THREE components are required to define a recursive CTE? (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
✓
Anchor member
A recursive CTE requires an anchor member (initial query), a recursive member (that references the CTE itself), and the UNION ALL operator to combine them. The WITH clause is the outer syntax, not part of the recursion itself.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ORDER BY clause
Why it's wrong here
ORDER BY is not required for recursion.
- ✓
Anchor member
Why this is correct
The anchor member defines the initial result set.
- ✗
WITH clause
Why it's wrong here
The WITH clause is used to define the CTE but is not a component of the recursion logic.
- ✓
Recursive member
Why this is correct
The recursive member references the CTE and adds rows.
- ✓
UNION ALL operator
Why this is correct
UNION ALL combines the anchor and recursive members.
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