How many user ids from 1 to 20 have no fan users and have low ratings?
user_id BETWEEN 1 AND 20; no fan users refers to user_fans = 'None'; low ratings refers to user_review_count = 'Low';
SELECT COUNT(user_id) FROM Users WHERE user_id BETWEEN 1 AND 20 AND user_fans LIKE 'None' AND user_review_count LIKE 'Low'