Help me in solving SQW29 problem

help
,
1

My issue

the given solution is not working

My code

SELECT 
    dp.product_type, 
    dp.product_id, 
    ms.revenue AS total_revenue, -- Use revenue as a proxy for sales
    ms.month
FROM 
    division_product_sales dp
JOIN 
    monthly_sales ms
ON 
    dp.month = ms.month
WHERE 
    dp.product_type IN ('High_Margin') -- Replace with the correct filtering logic
    AND ms.month IS NOT NULL; -- Optional: Ensure valid data

Learning course: Database management systems
Problem Link: Project - JOIN and Filtering in Database management systems