本文介绍了按天分组的 SQL 查询的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想列出所有销售额,并按天分组.
I want to list all sales, and group the sum by day.
Sales (saleID INT, amount INT, created DATETIME)
注意:我使用的是 SQL Server 2005.
NOTE: I am using SQL Server 2005.
推荐答案
如果您使用的是 SQL Server,
if you're using SQL Server,
dateadd(DAY,0, datediff(day,0, created))
将返回创建日期
例如,如果销售创建于2009-11-02 06:12:55.000",dateadd(DAY,0, datediff(day,0, created))
return '2009-11-02 00:00:00.000'
for example, if the sale created on '2009-11-02 06:12:55.000',
dateadd(DAY,0, datediff(day,0, created))
return '2009-11-02 00:00:00.000'
select sum(amount) as total, dateadd(DAY,0, datediff(day,0, created)) as created
from sales
group by dateadd(DAY,0, datediff(day,0, created))
这篇关于按天分组的 SQL 查询的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持编程学习网!
本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除!