我必须创建一个查询来解决此问题:单个客户一天购买的最大票数是多少?您的结果应包含3列(HippCode,购买日期和票数),结果中仅包含1行。

最佳答案

HippCode是个人身份吗?

select HippCode, DateBought as 'Date of Purchase', count(*) as 'Number of Tickets'
from ticket
group by HippCode, DateBought
order by count(*) desc
LIMIT 1

08-16 16:26