Sql 导致错误的默认约束

我使用以下SQL来创建表，但是第一个约束中的“DEFAULT”给了我一个错误：“默认约束只能存在于create或ALTER table语句中的列级别。”

我以前从未使用过默认设置，所以我通过互联网研究对此进行了一些研究，但没有任何东西能帮助我解决错误，甚至没有任何东西能真正向我解释它

CREATE TABLE [RuleEngine].[NCCIImportHistory](
                [NCCIImportHistoryID] [int] IDENTITY(1,1) NOT NULL,
                [StartTime] [datetimeoffset](7) NOT NULL,
                [EndTime] [datetimeoffset](7) NOT NULL,
                [CreatedOn] [datetimeoffset](7) NOT NULL,
                [CreatedBy_UserID] [int] NOT NULL,
CONSTRAINT [DF_NCCIImportHistory_CreatedOn]  DEFAULT (getutcdate()) FOR [CreatedOn],
CONSTRAINT [FK_NCCIImportHistory_User_CreatedBy] FOREIGN KEY([CreatedBy_UserID]) REFERENCES [Security].[User] ([UserID]),
CONSTRAINT [PK_NCCIImportHistoryID] PRIMARY KEY CLUSTERED ([NCCIImportHistoryID] ASC) 
    WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90) ON [PRIMARY]) ON [PRIMARY]

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您没有指定要使用的数据库，但根据语法，我认为是MS SQL Server。如果是这样，则可以将约束内联添加为列定义的一部分，如下所示：

[CreatedOn] [datetimeoffset](7) NOT NULL CONSTRAINT [DF_NCCIImportHistory_CreatedOn] DEFAULT (getutcdate()),

试试这个

CREATE TABLE [RuleEngine].[NCCIImportHistory]
    (
      [NCCIImportHistoryID] [INT] IDENTITY(1, 1)
                                  NOT NULL ,
      [StartTime] [DATETIMEOFFSET](7) NOT NULL ,
      [EndTime] [DATETIMEOFFSET](7) NOT NULL ,
      [CreatedOn] [DATETIMEOFFSET](7) NOT NULL CONSTRAINT [DF_NCCIImportHistory_CreatedOn] DEFAULT ( GETUTCDATE() ),
      [CreatedBy_UserID] [INT] NOT NULL ,
      CONSTRAINT [FK_NCCIImportHistory_User_CreatedBy] FOREIGN KEY ( [CreatedBy_UserID] ) REFERENCES [Security].[User] ( [UserID] ) ,
      CONSTRAINT [PK_NCCIImportHistoryID] PRIMARY KEY CLUSTERED
        ( [NCCIImportHistoryID] ASC )

        WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF,
               IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON,
               ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90 ) ON [PRIMARY]
    )
ON  [PRIMARY]

或者先创建表，然后像这样创建约束

CREATE TABLE [RuleEngine].[NCCIImportHistory]
    (
      [NCCIImportHistoryID] [INT] IDENTITY(1, 1) NOT NULL ,
      [StartTime] [DATETIMEOFFSET](7) NOT NULL ,
      [EndTime] [DATETIMEOFFSET](7) NOT NULL ,
      [CreatedOn] [DATETIMEOFFSET](7) NOT NULL,
      [CreatedBy_UserID] [INT] NOT NULL 
    )
ON  [PRIMARY]
GO


ALTER TABLE  [RuleEngine].[NCCIImportHistory] ADD CONSTRAINT [DF_NCCIImportHistory_CreatedOn] DEFAULT( GETUTCDATE() ) FOR [CreatedOn]
GO

ALTER TABLE  [RuleEngine].[NCCIImportHistory] ADD CONSTRAINT [FK_NCCIImportHistory_User_CreatedBy]  FOREIGN KEY ( [CreatedBy_UserID] ) REFERENCES [Security].[User] ( [UserID] )
GO

ALTER TABLE  [RuleEngine].[NCCIImportHistory] ADD CONSTRAINT [PK_NCCIImportHistoryID] PRIMARY KEY CLUSTERED( [NCCIImportHistoryID] ASC ) WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF,
               IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON,
               ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90 ) ON [PRIMARY]
GO

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请指定数据库管理系统。（这看起来不像ANSI/ISO SQL…）顺便说一句，我想你应该做一些类似列名数据类型默认值的事情…对不起。是SQL Server女士，谢谢！成功了！只要StackOverflow允许，我会接受你的回答。我最初在那里有改动，但我的导师建议把它们拿出来，这就是我为什么按照问题中的方式做的原因。谢谢你！