3375. Calendar: Generate every date in a supplied range. — Security

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

In a calendar module, solve this as a production problem using Security: Generate every date in a supplied range. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

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Answer & Explanation

4 Answers

Verified Correct Answer

Option A

WITH RECURSIVE dates AS (SELECT CAST(:start_date AS DATE) d UNION ALL SELECT d+INTERVAL 1 DAY FROM dates WHERE d<:end_date) SELECT d FROM dates;

Additional Explanation

A recursive date CTE can fill reporting gaps when no calendar table exists.

Verified

Option B

DELETE FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified

Option C

SELECT * FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified

Option D

UPDATE table_name SET status='active';

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.