我不能排序（升序/降序）這部分的MySql查詢？

Question

我想排序這些元素升序/降序。查詢

部分：

sum(CASE WHEN a.question_id=39 AND u.answer_id =215 THEN 1 ELSE 0 END) as optcount1, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =216 THEN 1 ELSE 0 END) as optcount2, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =217 THEN 1 ELSE 0 END) as optcount3, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =218 THEN 1 ELSE 0 END) as optcount4, 

全面查詢：

SELECT 39 AS ques_id,215 as optid1,216 as optid2,217 as optid3,218 as optid4, 
'Easy to start the business' as optans1, 
'Lower tax rate than a corporation' as optans2, 
'Liability is shared' as optans3, 
'Owner has total control and say over business' as optans4, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =215 THEN 1 ELSE 0 END) as optcount1, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =216 THEN 1 ELSE 0 END) as optcount2, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =217 THEN 1 ELSE 0 END) as optcount3, 
sum(CASE WHEN a.question_id=39 AND u.answer_id =218 THEN 1 ELSE 0 END) as optcount4, 
'217' as answer, 4 as count FROM `user_training_answers_statistics` as u, 
answers as a WHERE a.question_id='39' AND u.answer_id=a.answer_id 

請人給我這種情況的解決方案..

Answer 1

敷在另一個查詢然後執行排序：

select * from 
    (SELECT 39 AS ques_id,215 as optid1,216 as optid2,217 as optid3, 
      218 as optid4, 'Easy to start the business' as optans1, 
      'Lower tax rate than a corporation' as optans2, 
      'Liability is shared' as optans3, 
      'Owner has total control and say over business' as optans4, 
      sum(CASE WHEN a.question_id=39 AND u.answer_id =215 THEN 1 ELSE 0 END) 
      as optcount1, 
      sum(CASE WHEN a.question_id=39 AND u.answer_id =216 THEN 1 ELSE 0 END) 
      as optcount2, 
      sum(CASE WHEN a.question_id=39 AND u.answer_id =217 THEN 1 ELSE 0 END) 
      as optcount3, 
      sum(CASE WHEN a.question_id=39 AND u.answer_id =218 THEN 1 ELSE 0 END) 
      as optcount4, '217' as answer, 4 as count 
    FROM user_training_answers_statistics as u, 
      answers as a 
    WHERE a.question_id='39' AND u.answer_id=a.answer_id) as tmpTable 
ORDER BY optcount1, optcount2, optcount3, optcount4 ASC;