sql-server - 如何在 sql server 中获取此报告的查询？

Question

我有这个 sql 数据库

我想显示我的数据，如下所示：

笔记：

总销售额 = Sum(ProductsTbl.SalePrice * OrderDetailsTbl.SoldQuantity)

折扣 = Sum(ProductsTbl.SalePrice * OrderDetailsTbl.SoldQuantity) * DiscountRatesTbl.DiscountRate/100

已付 = SUM(isnull(CashMovementTbl.CashMovementValue,00.00)

那么如何在 SQL Server 中进行查询以显示这样的数据。

谢谢你的帮助。

我尝试了此查询，但未能获得折扣：

SELECT  c.CustName as 'Customer' ,

Total Sales= ( SELECT SUM(p.SalePrice * d.SoldQuantity) FROM OrderDetailsTbl d 
INNER JOIN  OrdersTbl o ON d.orderID = o.orderID INNER JOIN  ProductsTbl p ON p.ProductID = d.ProductID
WHERE o.CustomerID = c.CustomerID ) ,

Discounts= (Select isnull(sum(p.SalePrice * d.SoldQuantity)* dr.DiscountRate/100),00.00 FROM OrderDetailsTbl d 
INNER JOIN  OrdersTbl o ON d.orderID = o.orderID INNER JOIN  ProductsTbl p ON p.ProductID = 
d.ProductID inner join DiscountRatesTbl dr on dr.orderID = o.orderID WHERE o.CustomerID = c.CustomerID ) ,

Payed=  ( SELECT  SUM(isnull(cm.CashMovementValue,00.00)) FROM CashMovementTbl cm
INNER JOIN OrdersTbl o  ON o.orderID = cm.orderID WHERE  o.CustomerID = c.CustomerID)

FROM    CustomersTbl c
where ( SELECT SUM(p.SalePrice * d.SoldQuantity) FROM OrderDetailsTbl d 
INNER JOIN  OrdersTbl o ON d.orderID = o.orderID INNER JOIN  ProductsTbl p ON p.ProductID = 
d.ProductID WHERE o.CustomerID = c.CustomerID ) is not null 
order by c.CustName

Answer 1

这不是查询编写的最佳方式...

但是用以下内容替换您的折扣计算查询部分：

Discounts= (Select isnull(SUM(p.SalePrice * d.SoldQuantity* dr.DiscountRate/100),00.00) FROM OrderDetailsTbl d 
INNER JOIN  OrdersTbl o ON d.orderID = o.orderID INNER JOIN  ProductsTbl p ON p.ProductID = 
d.ProductID inner join DiscountRatesTbl dr on dr.orderID = o.orderID WHERE o.CustomerID = c.CustomerID ) ,

这将起作用。

简单地说，SUM必须包括所有乘数，而不是简单的p.SalePrice和d.SoldQuantity