SQL Server 2008为已有的列添加自增IDENTITY

SqlServer 2008

1.检查函数是否存在

2.为已有的列添加自增IDENTITY(1,1)

use xxx
go
--检查函数是否存在
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[getAllPid]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[getAllPid]
go

CREATE FUNCTION getAllPid(@SID varchar(200))
RETURNS @t_Level TABLE(SID varchar(200),Level int)
AS
BEGIN
DECLARE @Level int
SET @Level=1
INSERT @t_Level SELECT @SID,@Level
WHILE @@ROWCOUNT>0
BEGIN
SET @Level=@Level+1
INSERT @t_Level SELECT a.parentsid,@Level
FROM SYS_UNIT a,@t_Level b
WHERE a.sid=b.sid
AND b.Level=@Level-1
END
RETURN
END
GO
--为已有的列添加自增IDENTITY(1,1)
BEGIN TRANSACTION
SET QUOTED_IDENTIFIER ON
SET ARITHABORT ON
SET NUMERIC_ROUNDABORT OFF
SET CONCAT_NULL_YIELDS_NULL ON
SET ANSI_NULLS ON
SET ANSI_PADDING ON
SET ANSI_WARNINGS ON
COMMIT
BEGIN TRANSACTION
GO
CREATE TABLE dbo.GLQ_INTEGRATEDINFO1 (
[ID] [bigint] IDENTITY(1,1) NOT NULL PRIMARY KEY,
[MODELNAME] [bigint] NULL,
[CREATEDATE] [datetime] NULL,
[DONE] [bigint] NULL,
[DEAL] [bigint] NULL
)

GO
SET IDENTITY_INSERT dbo.GLQ_INTEGRATEDINFO1 ON
GO
IF EXISTS(SELECT * FROM dbo.GLQ_INTEGRATEDINFO)
EXEC('INSERT INTO dbo.GLQ_INTEGRATEDINFO1 (id,modelname,createdate,done,deal)
SELECT id,modelname,createdate,done,deal FROM dbo.GLQ_INTEGRATEDINFO WITH (HOLDLOCK TABLOCKX)')
GO
SET IDENTITY_INSERT dbo.GLQ_INTEGRATEDINFO1 OFF
GO
DROP TABLE dbo.GLQ_INTEGRATEDINFO
GO
EXECUTE sp_rename N'dbo.GLQ_INTEGRATEDINFO1', N'GLQ_INTEGRATEDINFO', 'OBJECT'
GO
COMMIT