如何为每个项目创建一个具有总计的新列？

Question

我正在使用Sql Server 2014，并且有一个T-SQL查询，其内容如下：

    Use MyDatabase
     Select Market, Sum([RN]) as [RN]
     From [View1]
     Group by Market

输出如下：

          Market               RN
          UK                      100
          FRANCE             125
          GERMANY          300

我需要在输出中添加新列，如下所示：

     Market               RN.         Grand Total
     UK                      100        525
     FRANCE             125        525
     GERMANY          300       525

我该怎么做？

Answer 1

您想要窗口功能：

select distinct market, 
       sum(rn) over (partition by market) as rn, 
       sum(rn) over () as Total
from view1 v1;