SELECT Product_Type_Code FROM Products GROUP BY Product_Type_Code HAVING COUNT(*)  >=  2
Show the product type codes that have at least two products.
SELECT Product_Type_Code FROM Products GROUP BY Product_Type_Code HAVING COUNT ( * ) > = 2
select product_type_code from products group by product_type_code having count ( * ) > = value
Show the product type codes that have at least two products .