MySQL에서 오름차순으로 값을 만드는 방법은 무엇입니까?

Question

이 형식과 같은 데이터베이스에서 task_name을 Fetch to task_name을 가져 오려면

Task 10 Task 2 Task 3 Task 5........

.

내 쿼리는 입니다.

 SELECT task_name, section_name, ref_student_id
 FROM scores
 WHERE ref_student_id = '".$studentid."'
    AND section_name = 'sm1'
 GROUP BY task_name

.

그래서 나는 이렇게 출력하고 싶다.

 Task 2 Task 3 Task 5 Task 10........

.

Answer 1

이 를 사용하십시오

"SELECT task_name, section_name, ref_student_id
 FROM scores
WHERE ref_student_id = '1'
AND section_name = 'sm1'
GROUP BY task_name
ORDER BY cast( SUBSTRING( task_name, 5 ) AS unsigned ) ASC"   

.

Answer 2

"select task_name,section_name,ref_student_id from scores where ref_student_id = '".$studentid."' and section_name = 'sm1' GROUP BY task_name order by task_name ASC "

.

오름차순으로 주문

Answer 3

use this

SELECT task_name, section_name, ref_student_id
FROM scores
WHERE ref_student_id = '".$studentid."'
AND section_name = 'sm1'
ORDER BY ltrim(task_name) ASC          //order by should come for ordering....
GROUP BY task_name

instead of

SELECT task_name, section_name, ref_student_id
FROM scores
WHERE ref_student_id = '".$studentid."'
AND section_name = 'sm1'
GROUP BY task_name