用于将不同类型的项列表插入表中的存储过程

Question

我有以下两个表

CREATE TABLE Orders
(
OrderID int IDENTITY NOT NULL,
StaffID int NOT NULL,
TotalPrice money NOT NULL,
OrderDateTime dateTime NOT NULL

PRIMARY KEY (OrderID),
FOREIGN KEY (StaffID)
REFERENCES Staff(StaffID)
)


CREATE TABLE OrderDetails
(
OrderDetailID int IDENTITY NOT NULL,
OrderID int NOT NULL,
ItemID int,
ExtrasID int,
ItemQuantity int,
ExtrasQuantity int

PRIMARY KEY (OrderDetailID)
FOREIGN KEY (OrderID)
REFERENCES Orders(OrderID),
FOREIGN KEY (ExtrasID)
REFERENCES Extras(ExtrasID),
FOREIGN KEY (ItemID)
REFERENCES Item(ItemID)
)

我想创建一个存储过程，它将通过将数据插入到两个表中来创建新订单。此过程应采用StaffID，TotalPrice和已购买产品的参数。产品可以是许多项目，许多额外或两者。

有没有什么方法可以将ItemID列表和ExtrasID列表作为参数，然后将正确插入到OrderDetails表中？

Answer 1

首先创建一个类型

CREATE TYPE dbo.ty_Product_Orders AS Table
(
 ItemID         INT
,ExtrasID       INT
,ItemQuantity   INT
,ExtrasQuantity INT
)
GO

程序定义

现在让你的程序接受该类型的参数。

CREATE PROCEDURE usp_Place_Order
 @StaffID        INT
,@TotalPrice     MONEY
,@Order          dbo.ty_Product_Orders READONLY
,@OrderPlaced    BIT = 0 OUTPUT
AS
BEGIN
  SET NOCOUNT ON;

 -- table variable to hold the identity values 
  DECLARE @OrderDetails TABLE 
  (
     OrderID        INT,
     ItemID         INT
    ,ExtrasID       INT
    ,ItemQuantity   INT
    ,ExtrasQuantity INT
  )

BEGIN TRY

BEGIN TRANSACTION;

-- Insert Orders

INSERT INTO Orders (StaffID , TotalPrice , OrderDateTime)
OUTPUT inserted.OrderID , inserted.ItemID ,inserted.ExtrasID ,
       inserted.ItemQuantity ,inserted.ExtrasQuantity 
        INTO  @OrderDetails(OrderID , ItemID , ExtrasID 
                            ,ItemQuantity ,ExtrasQuantity)
SELECT @StaffID , @TotalPrice , GETDATE()
FROM @Order


-- insert OrderDetails

INSERT INTO OrderDetails ((OrderID , ItemID , ExtrasID  ,ItemQuantity ,ExtrasQuantity)
SELECT OrderID , ItemID , ExtrasID,ItemQuantity ,ExtrasQuantity
FROM @OrderDetails

  COMMIT TRANSACTION;
END TRY

BEGIN CATCH
 IF (@@TRANCOUNT <> 0)
    ROLLBACK TRANSACTION;

  -- Other error logging here 

END CATCH

END