100F 求教C#的WinForm中保存相对路径到数据库？？？

求教C#的WinForm中保存相对路径到数据库？？？        private void constring(string command)
        {
            string cn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + "\\img.mdb;Persist Security Info=True";
            OleDbConnection conn = new OleDbConnection(cn);
            string updatas = command;
            OleDbCommand com = new OleDbCommand(updatas, conn);
            conn.Open();
            com.ExecuteNonQuery();
            conn.Close();
        }        private void button1_Click(object sender, EventArgs e)
        {
                string up = Application.StartupPath +"\\Upimage\\" + txtName.Text + ".jpg";
                p1.Image.Save(up);
                p1.Image = Image.FromFile(up);
                string inserts = "insert into image(Imgname,Imgfile) values ('" + txtName.Text.Trim() + "','" +up+"')";
                constring(inserts);
         }数据库怎样可以显示.././文件夹/文件名的相对路径呢？？？？