Madison มีเกมหลบหนีกี่เกม ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many escape games are there in Madison ?It is not neccessary to use all the tables.
 neighborhood:  id [ int]  business_id [ varchar]  neighborhood_name [ varchar] 
SELECT COUNT(DISTINCT (business.name)) FROM business, category WHERE business.city = 'Madison' AND category.business_id = business.business_id AND category.category_name = 'escape games'