Getting new IDs after insert

问题:

I'm inserting a bunch of new rows into a table which is defined as follows:

CREATE TABLE [sometable](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [someval] sometype NOT NULL
)

using the following insert:

insert into sometable select somefield as someval from othertable

when I've finished, I'd like to know the IDs of all the newly inserted rows. SCOPE_IDENTITY() only returns the ID last row inserted.

How can I get all the new IDs?

One method that springs to mind would be to grab the current largest identity from sometable and the scope_identity() post-insert, and use these two values to select from sometable. For example:

declare @currentMaxId int;
select @currentMaxId=MAX(id) from sometable
insert into sometable select somefield as someval from othertable
select * from sometable where id>@currentMaxId and id<=SCOPE_IDENTITY()

Is there a better pattern?

回答1:

Use the OUTPUT functionality to grab all the INSERTED Id back into a table.

CREATE TABLE MyTable
(
    MyPK INT IDENTITY(1,1) NOT NULL,
    MyColumn NVARCHAR(1000)
)

DECLARE @myNewPKTable TABLE (myNewPK INT)

INSERT INTO 
    MyTable
(
    MyColumn
)
OUTPUT INSERTED.MyPK INTO @myNewPKTable
SELECT
    sysobjects.name
FROM
    sysobjects

SELECT * FROM @myNewPKTable

回答2:

And if you want the "control" in ADO.Net and get the ids assigned to childs and getting the ids back so that you can update your model: http://daniel.wertheim.se/2010/10/24/c-batch-identity-inserts/

回答3:

User this stored Procuedure

this will be a dynamic primary key..

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO


CREATE PROCEDURE sp_BulkInsertCountry
(
@FilePath varchar(1000)
)
AS
BEGIN--PROCEDURE
--variable declaration
declare @SQL varchar(500)
declare @id int
declare @CountryName varchar(30)

--Create temporary table for Country
CREATE TABLE #tmpCountry
(
CountryName varchar(30),
)

---executing bulk insert on temporary table
SET @SQL='BULK INSERT #tmpCountry from ''' + @FilePath + ''' WITH (FIELDTERMINATOR ='','',ROWTERMINATOR=''\n'')'
EXEC(@sql)

DECLARE cursor_Country CURSOR READ_ONLY FOR
select [CountryName] from #tmpCountry

OPEN cursor_Country
FETCH NEXT FROM cursor_Country INTO @CountryName
WHILE @@FETCH_STATUS=0
BEGIN
SELECT @id=isnull(max(Countryid),0) from tblCountryMaster
SET @id=@id+1
INSERT INTO tblCountryMaster values(@Id,@CountryName) 
FETCH NEXT FROM cursor_Country INTO @CountryName
END
CLOSE cursor_Country
DEALLOCATE cursor_Country
END--PROCEDURE

GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

For More details visit following link http://jalpesh.blogspot.com/search?q=bulk+insert

回答4:

create a table to set all the new IDs. then make a loop for all the insert. inside the loop make the insert you want with SCOPE_IDENTITY(). after the insert get the new ID and insert it into the new table you created for. in the end select * from [newTable].