Я хочу изменить приведенный ниже код с пути windows на MSSQL server DB

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Сохранение Данных

private bool Save_training_data(Image face_data)
        {
            try
            {
                Random rand = new Random();
                bool file_create = true;
                string facename = "face_" + NAME_PERSON.Text + "_" + rand.Next().ToString() + ".jpg";
                while (file_create)
                {

                    if (!File.Exists(Application.StartupPath + "/TrainedFaces/" + facename))
                    {
                        file_create = false;
                    }
                    else
                    {
                        facename = "face_" + NAME_PERSON.Text + "_" + rand.Next().ToString() + ".jpg";
                    }
                }


                if (Directory.Exists(Application.StartupPath + "/TrainedFaces/"))
                {
                    face_data.Save(Application.StartupPath + "/TrainedFaces/" + facename, ImageFormat.Jpeg);
                }
                else
                {
                    Directory.CreateDirectory(Application.StartupPath + "/TrainedFaces/");
                    face_data.Save(Application.StartupPath + "/TrainedFaces/" + facename, ImageFormat.Jpeg);
                }
                if (File.Exists(Application.StartupPath + "/TrainedFaces/TrainedLabels.xml"))
                {
                    File.AppendAllText(Application.StartupPath + "/TrainedFaces/TrainedLabels.txt", NAME_PERSON.Text + "\n\r");
                    bool loading = true;
                    while (loading)
                    {
                        try
                        {
                            docu.Load(Application.StartupPath + "/TrainedFaces/TrainedLabels.xml");
                            loading = false;
                        }
                        catch
                        {
                            docu = null;
                            docu = new XmlDocument();
                            Thread.Sleep(10);
                        }
                    }

                    //Get the root element
                    XmlElement root = docu.DocumentElement;

                    XmlElement face_D = docu.CreateElement("FACE");
                    XmlElement name_D = docu.CreateElement("NAME");
                    XmlElement file_D = docu.CreateElement("FILE");

                    //Add the values for each nodes
                    //name.Value = textBoxName.Text;
                    //age.InnerText = textBoxAge.Text;
                    //gender.InnerText = textBoxGender.Text;
                    name_D.InnerText = NAME_PERSON.Text;
                    file_D.InnerText = facename;

                    //Construct the Person element
                    //person.Attributes.Append(name);
                    face_D.AppendChild(name_D);
                    face_D.AppendChild(file_D);

                    //Add the New person element to the end of the root element
                    root.AppendChild(face_D);

                    //Save the document
                    docu.Save(Application.StartupPath + "/TrainedFaces/TrainedLabels.xml");
                    //XmlElement child_element = docu.CreateElement("FACE");
                    //docu.AppendChild(child_element);
                    //docu.Save("TrainedLabels.xml");
                }
                else
                {
                    FileStream FS_Face = File.OpenWrite(Application.StartupPath + "/TrainedFaces/TrainedLabels.xml");
                    using (XmlWriter writer = XmlWriter.Create(FS_Face))
                    {
                        writer.WriteStartDocument();
                        writer.WriteStartElement("Faces_For_Training");

                        writer.WriteStartElement("FACE");
                        writer.WriteElementString("NAME", NAME_PERSON.Text);
                        writer.WriteElementString("FILE", facename);
                        writer.WriteEndElement();

                        writer.WriteEndElement();
                        writer.WriteEndDocument();
                    }
                    FS_Face.Close();
                }

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }

        }

Что я уже пробовал:

У меня есть этот фрагмент кода, который я хотел бы изменить путь к каталогу windows на sql, у меня есть таблица в БД Id как int, Personname как nvarchar(50), Images Как image, xmldata как xml.
Буду признателен, если вы сможете его расшифровать.

Спасибо

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