USE [AR_enitor_31]
GO
/****** Object: Table [dbo].[Table_1] Script Date: 04/09/2013 13:53:36 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Table_1](
[yyyymmdd] [nchar](10) NOT NULL,
[sn] [int] IDENTITY(1,1) NOT NULL,
[da1] [nchar](10) NULL,
[da2] [nchar](10) NULL,
[da3] [nchar](10) NULL,
[da4] [nchar](10) NULL,
CONSTRAINT [PK_Table_1] PRIMARY KEY CLUSTERED
(
[yyyymmdd] ASC,
[sn] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[Table_1] ADD CONSTRAINT [DF_Table_1_yyyymmdd] DEFAULT (CONVERT([char](10),getdate(),(112))) FOR [yyyymmdd]
GO
INSERT INTO Table_1(da1,da2,da3,da4) VALUES ('4','4','4','4')
GO
所以自動編號為2個部分合起來就是20130409 1～