2975. Inventory: Find products with no movement in the last 90 days. — Go database/sql

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

In a inventory module, solve this as a production problem using Go database/sql: Find products with no movement in the last 90 days. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

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Answer & Explanation

4 Answers

Verified

Option A

SELECT * FROM table_name;

Additional Explanation

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

Verified Correct Answer

Option B

SELECT p.id,p.name FROM products p LEFT JOIN inventory_movements m ON m.product_id=p.id AND m.created_at>=CURRENT_DATE-INTERVAL 90 DAY WHERE m.id IS NULL;

Additional Explanation

The date predicate belongs in the JOIN so products with no recent movement remain visible.

Verified

Option C

UPDATE table_name SET status='active';

Additional Explanation

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

Verified

Option D

DELETE FROM table_name;

Additional Explanation

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