Moodle-SQL查询可根据日期返回课程注册

Question

这是我到目前为止的内容，但它只返回课程名称和总注册人数：

SELECT c.fullname, COUNT(ue.id) AS Enroled
FROM prefix_course AS c 
JOIN prefix_enrol AS en ON en.courseid = c.id
JOIN prefix_user_enrolments AS ue ON ue.enrolid = en.id
GROUP BY c.fullname
ORDER BY c.fullname