CREATE TABLE ref_product_categories (product_category_description VARCHAR2, unit_of_measure VARCHAR2, product_category_code VARCHAR2)

What is the product category description and unit of measurement of category 'Herbs'?
SELECT product_category_description, unit_of_measure FROM ref_product_categories WHERE product_category_code = "Herbs"
SELECT "product_category_description", "unit_of_measure" FROM "ref_product_categories" WHERE "Herbs" = "product_category_code"