SQL Server insert与Select组合使用的方法


  本文标签:SQL Server insert

  SQL Server insert语句是SQL中最常见也是最重要的语句之一,下文将为您解读SQL Server insert与Select组合使用的方法,供您参考  。

  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);