如何禁用＆＃34; ONLY_FULL_GROUP_BY＆＃34;在sql server中

Question

我知道在mysql中我们可以禁用ONLY_FULL_GROUP_BY来执行与所选字段之外的其他字段相关的聚合。但在sql server中，我不知道如何。

这是我试过的查询：

select Arrival_Date, sum(Rate) 
from Stay
Group by month(Arrival_Date)

我收到了以下错误：

Msg 8120, Level 16, State 1, Line 2
Column 'Stay.Arr_Date' is invalid in the select list because it is not 
contained in either an aggregate function or the GROUP BY clause.

Answer 1

尝试这样做是没有意义的，显示作为聚合组的一部分的每个日期。我想你想要：

select 
    Month = month(Arrival_Date), 
    Total = sum(Rate) 
from 
    Stay
group by 
    month(Arrival_Date)