Task: Text to Code
Input (English): SQL: SELECT Sum ( Product_Price ) FROM Products WHERE Product_Name = "photo"
Feedback: Use order quantity in order items instead of product price in products table .
Output (English): SELECT sum(T1.Order_Quantity) FROM ORDER_ITEMS AS T1 JOIN Products AS T2 ON T1.Product_ID  =  T2.Product_ID WHERE T2.Product_Name  =  "photo"