Question

DECLARE @VARIABLE AS BIGINT   
SET @VARIABLE = Sum((Select Top 5 SUM(Quantity) FROM Orders Group by MenuItemName Order by Quantity Desc))   
Print @VARIABLE

这将返回错误：

无法对包含的表达式执行聚合函数聚合或子查询

我如何实现这一目标？

Answer 1

考虑到您要在@model Identity.Controllers.myClass @{ Layout = null; } @using (Html.BeginForm("createXML", "Home", FormMethod.Post)) { @Html.ValidationSummary(true) <div class="container-full" style="background-color:aliceblue"> <h3 class="= container">Einstellungen:</h3> <div class="container"> @Html.TextBoxFor(x => x.p) <input type="submit" value="Submit" /> </div> </div> }中订购记录，而不仅仅是sum(Quantity)

试试这种方式

Quantity

Answer 2

您可以使用select @variable =，您应该按sum(Quantity) desc排序。

declare @variable as bigint;

select @variable = Sum(SumQuantity) 
  from (
    select top 5 
        SumQuantity=Sum(Quantity)
      from Orders
      group by MenuItemName
      order by Sum(Quantity) desc
   ) as x;

print @variable;

如何通过以下查询获得Sum？

2 个答案: