Question

以下是我需要帮助的查询：

SELECT s.lastfirst, s.student_number, s.grade_level
FROM students s
WHERE s.schoolid = 300 AND s.enroll_status = 0 AND s.id not in
(
    SELECT d.studentid
    FROM section_meeting em INNER JOIN sections e
    ON em.sectionid = e.id
    INNER JOIN cc d ON e.id = d.sectionid      
    WHERE em.schoolid = 300 and em.period_number in (P1)    
)

此查询工作正常，但我需要在结果中显示列em.period_number。谁能建议怎么做呢？

谢谢！

Answer 1

查询工作正常，我需要显示列em.period_number 在结果中也是如此

如果您使用问题查询成功获得了结果，请让我添加period_number加入查询...：

SELECT       s.lastfirst, s.student_number, s.grade_level, section_meeting.period_number
FROM         students  s INNER JOIN
             section_meeting ON s.schoolid = section_meeting.schoolid
WHERE        (s.schoolid = 300) AND (s.enroll_status = 0) AND (s.id NOT IN
             (SELECT        d.studentid
             FROM         section_meeting  em INNER JOIN
                          sections  e ON em.sectionid = e.id INNER JOIN
                          cc  d ON e.id = d.sectionid
                          WHERE        (em.schoolid = 300) AND (em.period_number IN (P1))))

如何从NOT-IN子查询中选择列

1 个答案: