SELECT created_at,sku,name, SUM(qty_ordered) AS total_ordered
FROM sales_flat_order_item
WHERE created_at >= DATE_ADD(NOW(), INTERVAL -1 MONTH)
GROUP BY sku order by total_ordered desc
SELECT created_at,sku,name, SUM(qty_ordered) AS total_ordered
FROM sales_flat_order_item
WHERE created_at >= DATE_ADD(NOW(), INTERVAL -1 MONTH)
GROUP BY sku order by total_ordered desc