mysql 如何用作子查询

Question

示例数据

date	tomato	phone	book	pen
2022-05-15	2	2	3	1
2022-05-15	3	3	3	2

我想看

date	tomato	phone	book	pen
2022-05-15	5	5	6	3

我用这个

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' );

部分无效

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

Answer 1

我找到方法了！谢谢大家！

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 );

如果你找到其他方法请尝试 post

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