黑侠

SQL Server中有示例数据库Northwind。新建表Sales用于存储销售信息，字段为EmployeeID,ProductID,SupplierID,CustomerID,OrderDate,UnitPrice,Total,Quantity,Discount。下面的语句从Orders,Order Details, Employees,Products, Suppliers, Customers表选择相应的数据插入Sales表：


insert into Sales(EmployeeID,ProductID,SupplierID,CustomerID,OrderDate,UnitPrice,Total,Quantity,Discount)

select e.EmployeeID, p.ProductID, s.SupplierID,

c.CustomerID, o.OrderDate, od.UnitPrice,

od.Quantity*od.UnitPrice*(1.0-od.Discount)Total,

Od.Quantity, od.Discount

from Orders o,[Order Details] od, Employees e,

Products p, Suppliers s, Customers c

where (o.OrderID = od.OrderID) and

(o.EmployeeID = e.EmployeeID) and

(o.CustomerID = c.CustomerID) and

(od.ProductId = p.ProductID) and

(p.SupplierID = s.SupplierID);

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