我运行以下SQL代码时显示此错误？我试图通过子查询来解决这个代码

Question

loadDashboardItems

但显示此错误

  

Msg 8120，Level 16，State 1，Line 1   专栏＆＃39; Customer.CustomerName＆＃39;在选择列表中无效，因为它不包含在聚合函数或GROUP BY子句中。

Answer 1

您忘记指定group by子句，请尝试：

Select c.CustomerName, pl.ProductName as 'Product Name', o.OrderDate as 'Order date', 
Count([Address]) as 'No of Places', SUM(pl.Price * od.OrderQty) as 'Total Amount'
From Customer c
Inner Join [Order] o ON o.CustomerId = c.CustomerID
Inner Join OrderDetails od ON od.OrderId = o.OrderID
Inner Join ProductList pl ON pl.ProductID = od.ProductId
Inner join Customer cc on c.CustomerID=cc.CustomerID and cc.CustomerName = 'Mr.A'
group by c.CustomerName, pl.ProductName, o.OrderDate