asp.net about files being stored and read in the database

Recently, there is a mail-related work, you need to upload files to the database, and then the file from the database read out, to download.

Find some information and apply it to the project.

The structure of the database is as follows:

USE [EOffice]
GO
/**//****** 对象:　Table [dbo].[Group_Files]　　脚本日期: 07/20/2006 23:57:34 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Group_Files](
　　 [ID] [int] IDENTITY(1,1) NOT NULL,
　　 [FileName] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL CONSTRAINT [DF_Group_Files_FileName]　DEFAULT (''),
　　 [FileBody] [image] NULL,
　　 [FileType] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL CONSTRAINT [DF_Group_Files_FileType]　DEFAULT (''),
CONSTRAINT [PK_Group_Files] PRIMARY KEY CLUSTERED
(
　　 [ID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
SET ANSI_PADDING OFF

Then I wrote a stored procedure with the following code:

USE [EOffice]
GO
/**//****** 对象:　StoredProcedure [dbo].[SendTo_Group_Email]　　脚本日期: 07/20/2006 23:59:21 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

Create PROCEDURE [dbo].[SendTo_Group_Email]
(
@Title varchar(200),
@Content varchar(MAX),
@Area varchar(max),
@Sender varchar(50),
@Dept varchar(50),
@SendToUser varchar(50),
@FileName varchar(200),
@FileBody image,
@FileType varchar(4)
)
AS

INSERT Group_Email (Title,[Content],Area,SendToUser,Dept,Sender,FileName,FileBody,FileType) VALUES (@Title,@Content,@Area,@SendToUser,@Dept,@Sender,@FileName,@FileBody,@FileType)