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我创建了一个凭证录入系统，比如会计软件

但我收到一条错误消息

Msg 547, Level 16, State 0, Line 1
The INSERT statement conflicted with the FOREIGN KEY constraint "Payment_Voucher_All_Voucher_List". The conflict occurred in database "Accounting12", table "dbo.Payment_Voucher".

The statement has been terminated.

请任何人告诉我我的数据库
和数据库架构有什么问题

CREATE TABLE [dbo].[Receipt_Voucher] (
    [Id] INTEGER IDENTITY(90000000,1) NOT NULL,
    [Voucher_No] VARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
    [Date] DATE,
    [Dr_Account] INTEGER,
    [Dr_Amount] MONEY,
    [Cr_Account] INTEGER,
    [Cr_Amount] MONEY,
    [voucher_type] VARCHAR(40) NOT NULL,
    CONSTRAINT [PK_Receipt_Voucher] PRIMARY KEY CLUSTERED ([Voucher_No], [voucher_type])
)
GO


/* ---------------------------------------------------------------------- */
/* Add table "Payment_Voucher"                                            */
/* ---------------------------------------------------------------------- */

CREATE TABLE [dbo].[Payment_Voucher] (
    [Id] INTEGER IDENTITY(90000000,1) NOT NULL,
    [Voucher_No] VARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
    [Date] DATE,
    [Dr_Account] INTEGER,
    [Dr_Amount] MONEY,
    [Cr_Account] INTEGER,
    [Cr_Amount] MONEY,
    [voucher_type] VARCHAR(40) NOT NULL,
    CONSTRAINT [PK_Payment_Voucher] PRIMARY KEY CLUSTERED ([Voucher_No], [voucher_type])
)
GO


/* ---------------------------------------------------------------------- */
/* Add table "All_Voucher_List"                                           */
/* ---------------------------------------------------------------------- */

CREATE TABLE [dbo].[All_Voucher_List] (
    [Voucher_No] VARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
    [voucher_type] VARCHAR(40) NOT NULL,
    CONSTRAINT [PK_Voucher] PRIMARY KEY CLUSTERED ([Voucher_No], [voucher_type])
)
GO


/* ---------------------------------------------------------------------- */
/* Foreign key constraints                                                */
/* ---------------------------------------------------------------------- */

ALTER TABLE [dbo].[All_Voucher_List] ADD CONSTRAINT [Receipt_Voucher_All_Voucher_List] 
    FOREIGN KEY ([Voucher_No], [voucher_type]) REFERENCES [dbo].[Receipt_Voucher] ([Voucher_No],[voucher_type])
GO


ALTER TABLE [dbo].[All_Voucher_List] ADD CONSTRAINT [Payment_Voucher_All_Voucher_List] 
    FOREIGN KEY ([Voucher_No], [voucher_type]) REFERENCES [dbo].[Payment_Voucher] ([Voucher_No],[voucher_type])
GO

输入收据凭证

INSERT INTO dbo.Receipt_Voucher
        ( Voucher_No ,
          Date ,
          Dr_Account ,
          Dr_Amount ,
          Cr_Account ,
          Cr_Amount ,
          voucher_type
        )
VALUES  ( '0001' , -- Voucher_No - varchar(50)
          '2013-03-13 08:15:28' , -- Date - date
          5 , -- Dr_Account - int
          500 , -- Dr_Amount - money
          2 , -- Cr_Account - int
          500 , -- Cr_Amount - money
          '2'  -- voucher_type - varchar(40)
        )

现在输入 All_Voucher_List

INSERT INTO dbo.All_Voucher_List
        ( Voucher_No, voucher_type )
VALUES  ( '0001', -- Voucher_No - varchar(50)
          '2'  -- voucher_type - varchar(40)
          )

但有一些错误

Msg 547, Level 16, State 0, Line 1
The INSERT statement conflicted with the FOREIGN KEY constraint "Payment_Voucher_All_Voucher_List". The conflict occurred in database "Accounting12", table "dbo.Payment_Voucher".
The statement has been terminated.
4

2 回答 2

1

外键只能引用一个父表。

[Voucher_No], [voucher_type]在您的情况下，表的相同列All_Voucher_List引用两个表[Receipt_Voucher]和[Payment_Voucher].

当您尝试将记录插入第二个 FK 时会阻止您这样做，因为您在表中Receipt_Voucher没有相应的记录。Payment_Voucher

您可以在此处阅读有关该主题的更多信息

于 2013-03-13T08:39:01.953 回答
1

petterm 是正确的，您的第二个约束不允许插入通过。

我的第一个想法是创建一个包含所有凭证的表并在单个约束中使用它，但我知道您的第三个表正是该表。

所以我的建议是在填充前两个表时使用触发器或其他方法填充该表。

我知道这是要维护的另一段代码，但是其他可能的解决方法（例如使用视图或复制键来引用两个表）只会使您的数据模型更加复杂而几乎没有好处，并且会给谁将产生问题将来在这些桌子上工作..

于 2013-03-13T09:52:39.513 回答