upload file using stored procedure in asp.net?

<form id="form1"  runat="server">
    <div>
    
        <table class="style1">
            <tr>
                <td>
                    Name</td>
                <td>
                    <asp:TextBox ID="TextBox1" runat="server">
                </td>
            </tr>
            <tr>
                <td>
                    Upload File</td>
                <td>
                    <asp:FileUpload ID="FileUpload1" runat="server" />
                </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td>
                    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
                </td>
            </tr>
        </table>
    
    </div>
    </form>

code:

protected void Button1_Click(object sender, EventArgs e)
    {
        int userId = 0;

        string constr = ConfigurationManager.ConnectionStrings["connectionstring"].ConnectionString;

        using(SqlConnection con=new SqlConnection(constr))
        {
            using (SqlCommand cmd = new SqlCommand("SP_Uploadfile"))
            {
                using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                {
                    string strdata = @"~\data\" + FileUpload1.FileName;
                    FileUpload1.PostedFile.SaveAs(Server.MapPath(strdata));

                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.Parameters.AddWithValue("@Name", TextBox1.Text);
                    cmd.Parameters.AddWithValue("@Uploaddata", FileUpload1.FileBytes);

                    cmd.Connection = con;
                    con.Open();
                    userId = Convert.ToInt32(cmd.ExecuteScalar());
                    con.Close();

                }
            }
            string message = string.Empty;
            switch (userId)
            {
                default: message = "upload successfully";
                    break;
            }
            ClientScript.RegisterStartupScript(GetType(), "alert", "alert('" + message + "');", true);
        }
    }

USE [Place]
GO
 
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
 
Create PROCEDURE [dbo].[SP_Uploadfile]
@Name VARCHAR(50),
@Uploaddata varchar(max)	

AS
BEGIN
INSERT INTO [Uploadfile]
([Name],
[Uploaddata])

VALUES
(@Name,
@Uploaddata)


SELECT SCOPE_IDENTITY() -- Id	

END