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"
What are the total order quantities of photo products?
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 ''
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 = value
What are the total order quantities of photo products ?