Question

我想创建相关的存储过程处理购买。将数据插入itemPurchase表并更新Item表。

CREATE PROC [dbo].[ItemPurchaseProc]
    --@id int
    @ItemPrice float,
    @Itemqty int
AS
BEGIN
    insert into ItemPurchase(ItemPrice, ItemQty, ItemTotal) 
    values (@ItemPrice, @Itemqty, @ItemPrice * @Itemqty)

    Update Item
    Set StkCount =- @Itemqty 
END

这是我写的。以下是两个表。告诉我如何创建此过程。提前谢谢！

CREATE TABLE dbo.Item
(
    ItemCode AS 'IT' + RIGHT('000' + CAST(id as varchar(10)), 3) PERSISTED,
    id int NOT NULL IDENTITY (1,1),
    CONSTRAINT PK_Item PRIMARY KEY CLUSTERED (ItemCode),

    Item_Desc varchar(30),
    Quantity int,
    MinStkLvl int,
    SalesPrice float,
    StkCount int
);

CREATE TABLE dbo.ItemPurchase
(
    InvCode AS 'IN' + RIGHT('000' + CAST(id as varchar(10)), 3) PERSISTED,
    CONSTRAINT FK_InvCode1 
        FOREIGN KEY (InvCode) REFERENCES Invoice(InvCode) 
        ON DELETE CASCADE,
    id int NOT NULL IDENTITY (1,1), 
    ItemCode AS 'IT' + RIGHT('000' + CAST(id as varchar(10)), 3) PERSISTED,
    CONSTRAINT FK_ItemCode1 
        FOREIGN KEY (ItemCode) REFERENCES Item(ItemCode) 
        ON DELETE CASCADE,
    ItemPrice float,
    Itemqty int,
    ItemTotal float 
);

Answer 1

不清楚你需要什么。

但是，表上的2个操作需要处于事务中。

- 应在此处添加更新MinStkLvl的业务逻辑。也许触发一个触发器（？）或调用另一个存储过程...

CREATE PROCEDURE [dbo].[HandlePurchase]
(
    @itemId                 int,
    @qty                    int,
    @double                 price
)
AS
BEGIN TRANSACTION;
     BEGIN TRY

- 在此处将更新写入表格 - 在更新项目表之前，再次检查最小库存水平 - 您的业务逻辑

     COMMIT
     END TRY
BEGIN CATCH
        ROLLBACK;
        PRINT ERROR_MESSAGE();
END CATCH

使用过程插入和更新两个表

1 个答案: