MYSQL查询-多次点赞

Question

卡在这个查询上。显然我下面的内容是错误的，但希望它能让我想要做的事情变得清晰。

SELECT branch, 
SUM(price * quantity) as "Office" FROM orders WHERE account LIKE "0%" 
and 
SUM(price * quantity) as Personal FROM orders WHERE account LIKE "1%" 
GROUP BY branch;

我确信我已经离这里很远了。

谢谢

Answer 1

在每个总和中使用一个case:

select branch,
    sum(case when account like '0%' then price * quantity else 0 end) as Office,
    sum(case when account like '1%' then price * quantity else 0 end) as Personal
from orders
group by branch