รบกวนขอ Code C# อัพโหลดไฟล์ ดึงไฟล์ จาก MySQL Type:BLOB

OpenFileDialog fDialog = new OpenFileDialog();

FileStream fs;
            BinaryReader br;
            long FileSize;

            string FileName = textBox6.Text;
            byte[] fileData;
            fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
            FileSize = fs.Length; 
            br = new BinaryReader(fs);
            
            fileData= br.ReadBytes((int)fs.Length);
            br.Close();
            fs.Close();

            string strQuery = "INSERT INTO f_file (f_id,f_name,f_size,f_byte) VALUES('" + fid + "', '" + fileName + "', '" + FileSize + "', '" + fileData + "') ";

            DB.Insert(strQuery);