--before running this make sure Foreign key constraints have been removed that reference the ID. 

--set table to allow identity to be inserted
SET IDENTITY_INSERT yourTable ON;
GO
--insert everything into a temp table
SELECT * 
INTO #tmpYourTable
FROM yourTable

--clear your table
DELETE FROM yourTable
--insert back all the values with the updated ID column
INSERT INTO yourTable (IDCol, OtherCols)
SELECT ID+1 as updatedID --put any other update logic to the ID here
, OtherCols FROM #tmpYourTable
--drop the temp table
DROP TABLE #tmpYourTable
--put identity back to normal
SET IDENTITY_INSERT yourTable OFF;
GO

SET IDENTITY_INSERT dbo.TableName ON
INSERT INTO dbo.TableName 
(
    TableId, ColumnName1, ColumnName2, ColumnName3
)
VALUES
(
    TableId_Value, ColumnName1_Value, ColumnName2_Value, ColumnName3_Value
)

SET IDENTITY_INSERT dbo.TableName OFF

当使用Identity_Insert时，不要忘记包含列名，因为sql不允许你在没有指定列名的情况下进行插入

这发生在我身上，因为我做了一个合并，它更新了我正在进行合并的ID。

失败的例子(注意ClownID):

    MERGE ArchitectMain.dbo.BackendClowns AS TGT 
   USING (
    SELECT ClownID
        ,ClownName
        ,Description
        ,Active
        ,EmailSubject
        ,AddedBy
        ,Added
    FROM #temptable1
    ) AS SRC(ClownID, ClownName, Description, Active, EmailSubject, AddedBy, Added)
    ON (TGT.ClownID = SRC.ClownID)
WHEN MATCHED
    THEN
        UPDATE
        SET ClownID = SRC.ClownID
            ,ClownName = SRC.ClownName
            ,Description = SRC.Description
            ,Active = SRC.Active
            ,EmailSubject = SRC.EmailSubject
            ,AddedBy = SRC.AddedBy
            ,Added = SRC.Added;

示例(注意ClownID):

MERGE ArchitectMain.dbo.BackendClowns AS TGT
USING (
    SELECT ClownID
        ,ClownName
        ,Description
        ,Active
        ,EmailSubject
        ,AddedBy
        ,Added
    FROM #temptable1
    ) AS SRC(ClownID, ClownName, Description, Active, EmailSubject, AddedBy, Added)
    ON (TGT.ClownID = SRC.ClownID)
WHEN MATCHED
    THEN
        UPDATE
        SET ClownName = SRC.ClownName
            ,Description = SRC.Description
            ,Active = SRC.Active
            ,EmailSubject = SRC.EmailSubject
            ,AddedBy = SRC.AddedBy
            ,Added = SRC.Added;
            

你需要

set identity_insert YourTable ON

然后删除行并重新插入不同的标识。

插入完成后，不要忘记关闭identity_insert

set identity_insert YourTable OFF

不允许更新: 但是你可以

用正确的键插入新数据 删除注册

Import:所有字段必须在insert into中声明 示例:reg 5必须更改为4:

    set IDENTITY_INSERT Gastos_ReclamacionCausa on
insert into Gastos_ReclamacionCausa
    (IDCausa,TextoCombo,Asunto,Mensaje,EsBaja)
select 4,TextoCombo,Asunto,Mensaje,EsBaja from Gastos_ReclamacionCausa where idcausa=5
delete from  Gastos_ReclamacionCausa where idcausa = 5
set IDENTITY_INSERT Gastos_ReclamacionCausa off

--before running this make sure Foreign key constraints have been removed that reference the ID. 

--set table to allow identity to be inserted
SET IDENTITY_INSERT yourTable ON;
GO
--insert everything into a temp table
SELECT * 
INTO #tmpYourTable
FROM yourTable

--clear your table
DELETE FROM yourTable
--insert back all the values with the updated ID column
INSERT INTO yourTable (IDCol, OtherCols)
SELECT ID+1 as updatedID --put any other update logic to the ID here
, OtherCols FROM #tmpYourTable
--drop the temp table
DROP TABLE #tmpYourTable
--put identity back to normal
SET IDENTITY_INSERT yourTable OFF;
GO