得到表中的最高薪水和匹配日期

Question

branch_id Date   total_amount 
9   12-01-2016  1000 
7   12-02-2016  2000 
5   22-01-2016  3000 
6   24-02-2016  4000 

SELECT `branch_id`, `bill_date`, MAX(`bill_amount_total`) FROM `pos_master` group by `branch_id` 

如果我使用此查詢我得到了最大的bill_amount_total但日期不匹配

Answer 1

select m.* 
from pos_master m 
join 
(
    SELECT branch_id, MAX(bill_amount_total) as max_amount 
    FROM pos_master 
    group by branch_id 
) tmp on tmp.branch_id = m.branch_id 
    and tmp.max_amount = m.bill_amount_total 

Answer 2

這人會幫助你

SELECT `branch_id`, `bill_date`,`bill_amount_total` FROM `pos_master`ORDER BY bill_amount_total DESC LIMIT 1