SELECT sr.*,pm.paid
    FROM `sales_report` as sr
    INNER JOIN `payments` as pm
    ON sr.`agent_id`=pm.`agent_id` 
    ORDER BY sr.date, pm.date

从第一张表中获取日期，并在第一张表中的日期之前获得订单，然后在第二张表中的日期开始订购.

Will get you date from first table and order by 1st table date then 2nd table date.