尝试创建外键时出现主键错误

Question

在使用分区设置创建父/子表方案后遇到创建外键的问题.

CREATE TABLE [dbo].[MessageHeader]
   ([MessageHeaderID] [int] IDENTITY(1,1) NOT NULL,
    [MessageHeaderGlobalId] [uniqueidentifier] NULL,
    [CreatedDateTime] [datetime] NOT NULL
   )
GO

ALTER TABLE [dbo].[MessageHeader]
ADD CONSTRAINT [PC_MessageHeader_CreatedDateTime_1] 
PRIMARY KEY CLUSTERED ([MessageHeaderID], [CreatedDateTime] ASC)
WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = OFF) 
ON [PS_Monthly] ([CreatedDatetime])

CREATE TABLE [dbo].[MessageDataInfo]
    ([MessageDataInfoID] [int] IDENTITY(1,1) NOT NULL,
     [MessageHeaderID] [int] NOT NULL,
     [CreatedDateTime] [datetime] NOT NULL)
GO

ALTER TABLE [dbo].[MessageDataInfo] 
ADD CONSTRAINT [PC__CreatedDateTime_1] 
PRIMARY KEY CLUSTERED ([MessageDataInfoID], [CreatedDateTime])
WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = OFF) 
    ON [PS_Monthly] ([CreatedDatetime])
GO

ALTER TABLE [dbo].[MessageDataInfo]  WITH CHECK 
    ADD  CONSTRAINT [FK_HeaderID] 
    FOREIGN KEY([MessageHeaderID]) 
    REFERENCES [dbo].[MessageHeader] ([MessageHeaderID])

发生的是我收到错误:

消息1776,级别16,状态0,行1
在引用的表'dbo.MessageHeader'中没有与外键'FK_HeaderID'中的引用列列表匹配的主键或候选键.

我不确定为什么会发生这种情况,因为该列显然是主键!任何帮助表示赞赏.

Answer 1

您正尝试仅在父表的主键的一部分上创建外键.您必须使用整个主键来创建外键.