mysql에서 subquery를 쓰는 방법

insert into sales.copy 
select date, 
       sum(tomato), 
       sum(phone), 
       sum(book), 
       sum(pen) 
from copy 
where date = '2022-05-15';
GROUP BY date

delete from sales.copy
where date = '2022-05-15' and tomato < ( select max(tomato) from sales.copy where date = '2022-05-15' )

delete from sales.copy
where date = '2022-05-15' and tomato < ( select max(tomato) from sales.copy where date = '2022-05-15' ); 

delete from sales.copy WHERE date = '2022-05-15' AND tomato < ( select MAX(tomato) FROM (SELECT tomato from sales.copy where date = '2022-05-15') AS temp );