WITH t1 AS (SELECT user_id, DATE_FORMAT(order_time, '%Y-%m-%d') AS order_time FROM order_tb GROUP BY user_id, DATE_FORMAT(order_time, '%Y-%m-%d')), t2 AS (SELECT user_id, DATE_FORMAT(visit_time, '%Y-%m-%d') AS visit_time FROM visit_tb GROUP BY user_id, DATE_FORMAT(visit_time, '%Y-%m-%d')) SELECT tem...