SQL Server否匹配键错误消息

Question

我试图执行我通过Microsoft Visio的Forward Engineer Addin创建的数据库脚本。

以下是我收到错误和错误信息被引用的代码的部分：

错误1：

Msg 1776, Level 16, State 0, Line 12 
There are no primary or candidate keys in the referenced table 'dbo.Account_BillingAccount' that match the referencing column list in the foreign key 'Account_BillingAccount_InvoiceDetail_FK1'. 
Msg 1750, Level 16, State 0, Line 12 
Could not create constraint. See previous errors. 

代码文献1：

ALTER TABLE [dbo].[InvoiceDetail] WITH CHECK ADD CONSTRAINT [Account_BillingAccount_InvoiceDetail_FK1] FOREIGN KEY (
[BillingAccountNumber] 
, [AccountNumber] 
) 
REFERENCES [dbo].[Account_BillingAccount] (
[BillingAccountNumber] 
, [AccountNumber] 
) 

错误2：

Msg 1776, Level 16, State 0, Line 2 
There are no primary or candidate keys in the referenced table 'dbo.ManagerContract' that match the referencing column list in the foreign key 'ManagerContract_RegionalCoordinators_FK1'. 
Msg 1750, Level 16, State 0, Line 2 
Could not create constraint. See previous errors. 

代码参考2：

ALTER TABLE [dbo].[RegionalCoordinators] WITH CHECK ADD CONSTRAINT [ManagerContract_RegionalCoordinators_FK1] FOREIGN KEY (
[AssociateID] 
, [WritingNumber] 
) 
REFERENCES [dbo].[ManagerContract] (
[AssociateID] 
, [WritingNumber] 
) 

什么是消除上述误差的最有效方法是什么？

Answer 1

您必须在引用表中与列列表匹配的主键或唯一键。因此，在ManagerContract中，您需要AssociateID, WritingNumber和Account_BillingAccount上的唯一密钥，您需要它BillingAccountNumber, AccountNumber

查看有关如何创建唯一约束的信息。 http://msdn.microsoft.com/en-us/library/ms191166.aspx

ALTER TABLE [DBO]。[表名]添加约束 UNQ_ 表名 _ColumnName UNIQUE（[的ColumnName]）

像这样的事情在你的情况。

alter table dbo.ManagerContract 
add constraint UNQ_ManagerContract_AssociateID_WritingNumber 
unique (AssociateID, WritingNumber)