Question

我正在尝试从我的第一个表DocumentManagement.tbDocumentsHistory备份我的数据并将其保存在DocumentManagement.tbDocuments

并且因为DocumentManagement.tbDocuments具有ID IDENTITY_INSERT列，所以会出现此错误

只有在使用列列表并且IDENTITY_INSERT为ON时，才能指定表'DocumentManagement.tbDocuments'中标识列的显式值。

当我使用此代码时

DELETE FROM DocumentManagement.tbDocumentsHistory
OUTPUT DELETED.* INTO DocumentManagement.tbDocuments 
FROM    DocumentManagement.tbDocumentsHistory
WHERE   DocumentID=@DocumentID

我尝试使用此代码关闭DocumentManagement.tbDocuments上的IDENTITY_INSERT

SET IDENTITY_INSERT DocumentManagement.tbDocuments ON 
        DELETE FROM DocumentManagement.tbDocumentsHistory
            OUTPUT DELETED.* INTO DocumentManagement.tbDocuments 
            FROM    DocumentManagement.tbDocumentsHistory
        WHERE   DocumentID=@DocumentID
        SET IDENTITY_INSERT DocumentManagement.tbDocuments OFF

我仍然面临同样的错误！

我的桌子desc：

CREATE TABLE [DocumentManagement].[tbDocuments](
[DocumentID] [bigint] IDENTITY(1,1) NOT NULL,
[DocumentNameEn] [nvarchar](max) NULL,
[DocumentNameAr] [nvarchar](max) NULL,
[DocumentDescriptionEn] [nvarchar](max) NULL,
[DocumentDescriptionAr] [nvarchar](max) NULL,
[CreatedOn] [datetime2](7) NULL,
[ModifiedOn] [datetime2](7) NULL,
[AddedBy] [bigint] NULL,
[modifaiedBy] [bigint] NULL,
[PhysicalName] [nvarchar](max) NULL,
[Extension] [nvarchar](15) NULL,
[DocumentTypeID] [bigint] NULL,
[PhysicalPath] [nvarchar](max) NULL,


CONSTRAINT [PK_tbDocuments] PRIMARY KEY CLUSTERED([DocumentID] ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

）ON [PRIMARY]

CREATE TABLE [DocumentManagement].[tbDocumentsHistory](
[DocumentID] [bigint] NOT NULL,
[DocumentNameEn] [nvarchar](max) NULL,
[DocumentNameAr] [nvarchar](max) NULL,
[DocumentDescriptionEn] [nvarchar](max) NULL,
[DocumentDescriptionAr] [nvarchar](max) NULL,
[CreatedOn] [datetime2](7) NULL,
[ModifiedOn] [datetime2](7) NULL,
[AddedBy] [bigint] NULL,
[modifaiedBy] [bigint] NULL,
[PhysicalName] [nvarchar](max) NULL,
[Extension] [nvarchar](15) NULL,
[DocumentTypeID] [bigint] NULL,
[PhysicalPath] [nvarchar](max) NULL, CONSTRAINT [PK_tbDocumentsHistory] PRIMARY KEY CLUSTERED([DocumentID] ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]) ON [PRIMARY]

Answer 1

这将解决问题，但我试图使用OUTPUT

做得更好

SET IDENTITY_INSERT DocumentManagement.tbDocuments ON
        INSERT INTO DocumentManagement.tbDocuments
                ( DocumentID, DocumentNameEn , DocumentNameAr , DocumentDescriptionEn ,
                  DocumentDescriptionAr , CreatedOn , ModifiedOn ,
                  AddedBy , modifaiedBy , PhysicalName ,Extension ,
                  DocumentTypeID ,PhysicalPath
                )   
        SELECT * FROM  DocumentManagement.tbDocumentsHistory
        SET IDENTITY_INSERT DocumentManagement.tbDocuments OFF

        DELETE FROM DocumentManagement.tbDocumentsHistory           
        FROM    DocumentManagement.tbDocumentsHistory
        WHERE   DocumentID=@DocumentID

Answer 2

您需要修改INSERT语句并添加包含标识列名称的列列表，以便工作。

任何使用标识插入的INSERT语句都需要列列表，如下所示：

CREATE TABLE dbo.Tab 
(
   ID INT IDENTITY NOT NULL PRIMARY KEY, 
   Name VARCHAR(40) NOT NULL
)

SET IDENTITY_INSERT dbo.Tab ON
GO

INSERT INTO dbo.Tab (ID, Name) VALUES (3000, 'Groucho')
GO

SET IDENTITY_INSERT dbo.Tab OFF

Answer 3

TL; DR：：错误所请求的列列表说明是目标表的列列表。在这种情况下，OUTPUT DELETED.* INTO DestinationTable (IdentityColumn, othercolumn, anothercolumn,...)，如果您仅从源数据中显式指示列而不是进行Deleted.*，则将无法使用。

错误消息指出您必须打开标识插入并指定列列表。问题在于您尚未为插入内容指定列列表。

您可以签出output clause documentation来查看如何在此处指示列列表。在这种情况下，考虑到您自己接受的答案上的列，您的sql代码将类似于：

DELETE FROM DocumentManagement.tbDocumentsHistory
OUTPUT DELETED.DocumentID, DELETED.DocumentNameEn, Deleted.DocumentNameAr,
Deleted.DocumentDescriptionEn, Deleted.DocumentDescriptionAr, Deleted.CreatedOn, 
Deleted.ModifiedOn, Deleted.AddedBy, Deleted.modifaiedBy, Deleted.PhysicalName, 
Deleted.Extension, Deleted.DocumentTypeID, Deleted.PhysicalPath  INTO DocumentManagement.tbDocuments
( 
                  DocumentID, DocumentNameEn , DocumentNameAr , DocumentDescriptionEn ,
                  DocumentDescriptionAr , CreatedOn , ModifiedOn ,
                  AddedBy , modifaiedBy , PhysicalName ,Extension ,
                  DocumentTypeID ,PhysicalPath
)
FROM    DocumentManagement.tbDocumentsHistory
WHERE   DocumentID=@DocumentID

标识列的显式值？

3 个答案: