Show the product type codes which have at least two products.
CREATE TABLE products (product_type_code VARCHAR)
SELECT product_type_code FROM products GROUP BY product_type_code HAVING COUNT(*) >= 2
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE products (product_type_code VARCHAR) Question: Show the product type codes which have at least two products. [/INST] SELECT product_type_code FROM products GROUP BY product_type_code HAVING COUNT(*) >= 2 </s>