Sql server 在子查询中聚合分组依据

尝试在一列中按年度返回每个特定销售人员的销售额，并在下一列中返回总销售额的百分比

子查询应该返回所有销售的总计，因此可以计算百分比。但是百分比是错误的，因为我无法聚合OrderDate，因为这样它在join语句中就不会被识别（不能按年份分组（OrderDate））。任何洞察都会很好

SELECT Year(t1.OrderDate) as SalesYear,   sum(SubTotal+TaxAmt) as Sales,
    sum(SubTotal+TaxAmt)  / sum(YearlyGrandTotal) AS [Percent]
 FROM [AdventureWorks2017].[Sales].[SalesOrderHeader] t1
INNER JOIN (
    SELECT  OrderDate,Year(OrderDate) as O, sum(SubTotal+TaxAmt) as 
YearlyGrandTotal
    FROM Sales.SalesOrderHeader  
    GROUP BY (OrderDate)
) AS [Total] ON t1.OrderDate = Total.OrderDate
where SalesPersonID = 275

GROUP BY Year(t1.OrderDate)

使用

group by year（orderdate）

获取

salersonid=275的
sales
和
yearlygrandtotal
并将其作为子查询来计算百分比：

select 
  t.salesyear,
  t.sales,
  100.0 * t.sales / t.yearlygrandtotal percentage
from (
  select 
    year(orderdate) salesyear,
    sum(case when salespersonid = 275 then subtotal + taxamt else 0 end) sales,
    sum(subtotal + taxamt) yearlygrandtotal
  from [AdventureWorks2017].[Sales].[SalesOrderHeader]
  group by year(orderdate) 
) t