如何选择记录包含GROUP(group by)中的MAX(some_field)

Question

SELECT MAX(some_field) FROM table_A GROUP BY another_field

这只获得'some_field'的最大值; 我想得到包含的整个记录MAX(some_field).

Answer 1

select a.*
from table_A a
inner join (
    SELECT another_field, MAX(some_field) as MaxSomeField
    FROM table_A 
    GROUP BY another_field
) am on a.another_field = am.another_field and a.some_field = am.MaxSomeField