在一个时间间隔内列出来自MySQL服务器的SUM数据

Question

我有一个名为ch6的表，它有以下字段：

id, daytime, tout, tloss.. etc. 
daytime is DATETIME , tout and tloss are integer

现在，我想检索并列出表格中每个日期tloss和tout的总和

date || sum(tout) for certain interval || sum(tloss) for certain interval

我面临一些问题，间隔时间到第二天

例如：

20-2-2014 || (sum of tout from 8:00pm to 8:00am the next day) || (sum of tloss between 8:00pm to 8:00am the next day)

解决方案是什么？请帮忙。

Answer 1

您可以尝试以下

SELECT daytime , SUM(tout) AS total_tout , SUM(tloss) as total_loss 
FROM ch6 
WHERE daytime 
BETWEEN CURRENT_DATE() + INTERVAL 20 HOUR AND CURRENT_DATE() + INTERVAL 32 HOUR
GROUP BY daytime;