以上語句無法滿足要求

實現如下：

1、mysql和oracle都支援

SELECT department_id,order_expected_amount,administrator_id, case administrator_id when 0 then -1 else order_expected_amount end as orderByNumber FROM order_calculate_collect WHERE `month`=4 ORDER BY department_id,orderByNumber desc;

2、只支援mysql

SELECT department_id,order_expected_amount,administrator_id FROM order_calculate_collect WHERE `month`=4 ORDER BY  department_id,if(administrator_id = 0,1,0),order_expected_amount desc;

總結：驗證了個事 if 這個只作用一行資料，我一直以為是if 作用完這一行 其他按