Hello!  Can you please list all of the product names that have the color description of "white"?
select t1.product_name from products as t1 join ref_colors as t2 on t1.color_code = t2.color_code where t2.color_description = "white"
Thank you for that! Can you update this list to show the typical selling price for each?
select t1.product_name,t1.typical_selling_price from products as t1 join ref_colors as t2 on t1.color_code = t2.color_code where t2.color_description = "white"
Yes!  Can you provide me with the average typical selling price of all product category code?
select product_category_code, avg ( typical_buying_price ) from products group by product_category_code