Question

ORDER BY无效。我已经尝试过我知道的方法，但它不会订购，为什么？

返回：在布尔值

上调用成员函数result_array（）

public function getDetailbyClsandSection($class_id, $section_id, $exam_id) {
    $query = $this->db->query("SELECT exam_schedules.*,subjects.name,subjects.type FROM exam_schedules,teacher_subjects,exams,class_sections,subjects  WHERE exam_schedules.teacher_subject_id = teacher_subjects.id and exam_schedules.exam_id =exams.id and class_sections.id =teacher_subjects.class_section_id and teacher_subjects.subject_id=subjects.id and class_sections.class_id =" . $this->db->escape($class_id) . " and class_sections.section_id=" . $this->db->escape($section_id) . " and exam_id =" . $this->db->escape($exam_id) . " and exam_schedules.session_id=" . $this->db->escape($this->current_session));     
    return $query->result_array(); 
}

Answer 1

  $query = $this->db->query("SELECT exam_schedules.*,subjects.name,subjects.type FROM exam_schedules,teacher_subjects,exams,class_sections,subjects   WHERE exam_schedules.hide = 'N' and exam_schedules.teacher_subject_id = teacher_subjects.id and exam_schedules.exam_id =exams.id and class_sections.id =teacher_subjects.class_section_id and teacher_subjects.subject_id=subjects.id and class_sections.class_id =" . $this->db->escape($class_id) . " and class_sections.section_id=" . $this->db->escape($section_id) . " and exam_id =" . $this->db->escape($exam_id) . " and exam_schedules.session_id=" . $this->db->escape($this->current_session) . " ORDER BY exam_schedules.date_of_exam ASC");

不工作的命令，Codeigniter

1 个答案: