C# .NET สอบถามเรื่องการอัพเดท BLOB ลงใน Oracle ครับ โดยผมได้ดูจากบทความของคุณวินแล้วลองใช้กับ Oracle แล้วยังไม่สามารถ insert ลงได้ครับ

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.OracleClient;

namespace ASPNetBLOB
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnUpload_Click(object sender, EventArgs e)
        {
            this.pnlForm.Visible = false;

            if (this.fUpload.HasFile == false | string.IsNullOrEmpty(this.txtName.Text))
            {
                this.lblStatus.Text = "Please input Name and Chooes File.";

            }
            else
            {
                //*** Read Binary Data ***'
                byte[] imbByte = new byte[fUpload.PostedFile.InputStream.Length + 1];
                fUpload.PostedFile.InputStream.Read(imbByte, 0, imbByte.Length);

                //*** MimeType ***'
                string ExtType = System.IO.Path.GetExtension(fUpload.PostedFile.FileName).ToLower();
                string strMIME = null;
                switch (ExtType)
                {
                    case ".gif":
                        strMIME = "image/gif";
                        break;
                    case ".jpg":
                    case ".jpeg":
                    case ".jpe":
                        strMIME = "image/jpeg";
                        break;
                    case ".png":
                        strMIME = "image/png";
                        break;
                    default:
                        this.lblStatus.Text = "Invalid file type.";
                        return;
                }

                //*** Insert to Database ***'
                OracleConnection objConn = new OracleConnection();
                string strConnString = null;
                string strSQL = null;

				strConnString = "Data Source=TCDB;User Id=myuser;Password=mypassword;";

                strSQL = "INSERT INTO files (Name,FilesName,FilesType) VALUES (:sName,:sFilesName,:sFilesType)";
                objConn.ConnectionString = strConnString;
                objConn.Open();

                OracleCommand objCmd = new OracleCommand(strSQL, objConn);
                objCmd.Parameters.Add(":sName", OracleType.VarChar).Value = this.txtName.Text;
                objCmd.Parameters.Add(":sFilesName", OracleType.Blob).Value = imbByte;
                objCmd.Parameters.Add(":sFilesType", OracleType.VarChar).Value = strMIME;
                objCmd.ExecuteNonQuery();

                objConn.Close();
                objConn = null;

                this.lblStatus.Text = "File Upload Successfully. Click <a href='ListPicture.aspx'>here</a> to view.";
            }
        }

    }
}

strSQL = "INSERT INTO files (Name,FilesName,FilesType) VALUES ('"+this.txtName.Text+"','"+imbByte+"','"+strMIME+"')";