Moodle SQL 查询以检索过去 90 天内注册课程的所有用户

Question

我需要一个 SQL 查询，该查询将向我提供过去 90 天内注册课程且未暂停的所有用户。

我做了一些搜索并找到了这个：

SELECT DISTINCT u.id AS userid, c.id AS courseid
FROM mdl_user u
JOIN mdl_user_enrolments ue ON ue.userid = u.id
JOIN mdl_enrol e ON e.id = ue.enrolid
JOIN mdl_role_assignments ra ON ra.userid = u.id
JOIN mdl_context ct ON ct.id = ra.contextid AND ct.contextlevel = 50
JOIN mdl_course c ON c.id = ct.instanceid AND e.courseid = c.id
JOIN mdl_role r ON r.id = ra.roleid AND r.shortname = 'student'
WHERE e.status = 0 AND u.suspended = 0 AND u.deleted = 0
  AND (ue.timeend = 0 OR ue.timeend > NOW()) AND ue.status = 0

我可以通过在查询末尾添加 AND courseid = 11 来 return 特定课程的结果，但我仍在为日期范围而苦苦挣扎。

我试过使用：

AND ue.timecreated BETWEEN NOW() - INTERVAL 90 DAY AND NOW()

但那是 return 没有结果我什至尝试添加 2000 天的范围但它 return 什么都没有

这是我当前修改的查询：

SELECT DISTINCT u.id AS userid, c.id AS courseid, DATE_FORMAT(ue.timecreated, '%m/%d/%Y')
FROM mdl_user u
JOIN mdl_user_enrolments ue ON ue.userid = u.id
JOIN mdl_enrol e ON e.id = ue.enrolid
JOIN mdl_role_assignments ra ON ra.userid = u.id
JOIN mdl_context ct ON ct.id = ra.contextid
AND ct.contextlevel =50
JOIN mdl_course c ON c.id = ct.instanceid
AND e.courseid = c.id
JOIN mdl_role r ON r.id = ra.roleid
AND r.shortname =  'student'
WHERE e.status =0
AND u.suspended =0
AND u.deleted =0
AND (
ue.timeend =0
OR ue.timeend > NOW()
)
AND ue.status =0
AND ue.timecreated BETWEEN NOW() - INTERVAL 1200 DAY AND NOW()
AND courseid = 11

那 return 没什么，只要我删除包含日期范围的倒数第二行，我就会收到课程 ID 11 内的所有结果。

基本上我需要：

过去 90 天内注册特定课程且未被暂停或删除的所有用户的列表。

结果类似于：

course id: 20
user id: 200, 533, 221, 22, 356

Answer 1

解决方法在这里：

SELECT DISTINCT u.id AS userid, c.id AS courseid, DATE_FORMAT(FROM_UNIXTIME(ue.timecreated),'%m/%d/%Y') AS timecreated
FROM mdl_user u
JOIN mdl_user_enrolments ue ON ue.userid = u.id
JOIN mdl_enrol e ON e.id = ue.enrolid
JOIN mdl_role_assignments ra ON ra.userid = u.id
JOIN mdl_context ct ON ct.id = ra.contextid
AND ct.contextlevel =50
JOIN mdl_course c ON c.id = ct.instanceid
AND e.courseid = c.id
JOIN mdl_role r ON r.id = ra.roleid
AND r.shortname =  'student'
WHERE e.status =0
AND u.suspended =0
AND u.deleted =0
AND (
ue.timeend =0
OR ue.timeend > NOW( )
)
AND ue.status =0
AND courseid =11
AND FROM_UNIXTIME(ue.timecreated) BETWEEN CURDATE() - INTERVAL 90 DAY AND CURDATE()

Answer 2

Moodle 中的时间以整数形式存储，并且是 UTC unix 时间戳。因此 MySql 中的日期函数将不起作用 - 除非使用 FROM_UNIXTIME().

转换它们

如果您想要注册所有用户，而不仅仅是学生，那么这就更简单了。

SELECT ue.id, e.courseid, ue.userid, e.enrol AS enrolmethod, FROM_UNIXTIME(ue.timecreated)
FROM mdl_user_enrolments ue
JOIN mdl_enrol e ON e.id = ue.enrolid AND e.status = 0
JOIN mdl_user u ON u.id = ue.userid AND u.deleted = 0 AND u.suspended = 0
WHERE ue.timecreated >= 90 * 24 * 60 * 60 AND ue.status = 0

虽然可以使用多种方法注册用户。因此，如果您只想要 userid 和 courseid，则使用 group by 而不是 distinct。

SELECT CONCAT(e.courseid, '_', ue.userid) AS uniqueid, e.courseid, ue.userid, FROM_UNIXTIME(MAX(ue.timecreated))
FROM mdl_user_enrolments ue
JOIN mdl_enrol e ON e.id = ue.enrolid AND e.status = 0
JOIN mdl_user u ON u.id = ue.userid AND u.deleted = 0 AND u.suspended = 0
WHERE ue.status = 0
GROUP BY e.courseid, ue.userid
HAVING MAX(ue.timecreated) >= 90 * 24 * 60 * 60

Moodle SQL 查询以检索过去 90 天内注册课程的所有用户

Moodle SQL query to retrieve all users enrolled to a course in the past 90 days

mysql

moodle