[Solved] How can you modify this recursive CTE to generate a series of squares from 1 to 5?WITH RECURSIVE seq AS (SELECT 1 AS n UNION ALL SELECT n + 1 FROM seq WHERE n < 5) SELECT n*n AS square FROM seq; | SQL

SQL - Common Table Expressions (CTEs)

How can you modify this recursive CTE to generate a series of squares from 1 to 5?

WITH RECURSIVE seq AS (SELECT 1 AS n UNION ALL SELECT n + 1 FROM seq WHERE n < 5) SELECT n*n AS square FROM seq;

AAdd WHERE clause to filter squares less than 25

BNo change needed; query outputs squares 1,4,9,16,25

CAdd square calculation inside recursive SELECT

DChange base SELECT to SELECT 1 AS n, 1 AS square

Step-by-Step Solution

Solution:

Step 1: Understand query logic
Recursive CTE generates numbers 1 to 5, then SELECT calculates square in final output.
Step 2: Confirm no modification needed
Since square is computed in final SELECT, no change to CTE is required.
Final Answer:
No change needed; query outputs squares 1,4,9,16,25 -> Option B
Quick Check:
Calculate squares in final SELECT, not in recursion [OK]

Quick Trick: Compute derived values after recursion in final SELECT [OK]

Common Mistakes:

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How can you modify this recursive CTE to generate a series of squares from 1 to 5?