//找出各科最高成績
create table gradeMax(
id int primary key auto_increment,
name varchar(20),
subject varchar(20),
grade int
);

insert into gradeMax(name ,subject ,grade ) values
(‘小點‘,‘語文‘,100),
(‘小黑‘,‘數學‘,100),
(‘小軍‘,‘英語‘,100),
(‘小王‘,‘語文‘,88),
(‘小憋‘,‘數學‘,99),
(‘小麗‘,‘英語‘,89);

select * from gradeMax
where GRADE =(select max(grade) from gradeMax where name=name);

mySQL--找出各科最高成績