MySQL - 如果表A左表连接到表B，我如何对表B中的字段进行ORDER BY？

Question

这是我的SQL查询：

    SELECT  pts.pts_id, 
            pts.pts_name, 
            meds.*
    FROM    pts
            LEFT JOIN meds
            ON pts.pts_id = meds.pts_id_fk
    WHERE   pts.id_fk = $id
      AND   pts_current = 1

表pts（即表A）具有以下数据：

pts_id   time
1        Joe
2        Jack
3        Jill

表meds（即表B）具有以下数据：

pts_id_fk   time
1           7AM
1           8AM
1           9AM
2           7AM
2          10AM
3          11AM

我想基于ORDER BY time {{1}}此查询的结果。

有任何建议怎么做？

Answer 1

SELECT  pts.pts_id, 
            pts.pts_name, 
            meds.*
    FROM    pts
            LEFT JOIN meds
            ON pts.pts_id = meds.pts_id_fk
    WHERE   pts.id_fk = $id
      AND   pts_current = 1

ORDER BY pts.pts_id, meds.time

Answer 2

嗯，ORDER BY meds.time

怎么样？