Find the number of different product types.
CREATE TABLE products (product_type_code VARCHAR)
SELECT COUNT(DISTINCT product_type_code) FROM products
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE products (product_type_code VARCHAR) Question: Find the number of different product types. [/INST] SELECT COUNT(DISTINCT product_type_code) FROM products </s>