status_id,
user_id,
class_id,
order_id,
`status`
SELECT status_id,
class_config_id,
class_name,
need_paper,
(bx_hours + xx_hours) as total_hours,
apply_start_time,
apply_end_time,
study_start_time,
study_end_time,
paper_start_time,
paper_end_time,
cert_start_time,
cert_end_time,
user_id,
paper_id,
status
FROM user_status as ut
INNER JOIN class_config cc on ut.class_id = cc.class_config_id
WHERE user_id = #{userId} and status=1
SELECT
SELECT
SELECT
SELECT
u.*,o.create_time as payTime
FROM user u
INNER JOIN user_status us on u.user_id = us.user_id
join orders o on us.order_id=o.orders_id
WHERE us.class_id = #{classId}
update user_status set
status = 0
where user_id = #{userId} and class_id=#{classId} and order_id=#{orderId}