给oracle插入图片报错了

public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {



		String FileType=request.getContentType();

		System.out.println(FileType);

		String img=request.getParameter("Photo");

		System.out.println(img);

				

		String sql="update EMP_TES set(Photo) values(?) where epmno = 7369";

		try{



			File file = new File(img);

			FileInputStream str=new FileInputStream(img);

			System.out.println(str.available()); 

			PreparedStatement ps=cn.prepareStatement(sql);



			ps.setBinaryStream(1,str,str.available());

			ps.executeUpdate();

			ps.close();

		}catch(Exception e){

			System.out.println("取得记录错误:"+e.getMessage());

		}

	}

报错了：
取得记录错误:ORA-00927: 缺失等号


这个学期刚刚学J2EE，请教大侠，怎么解决这个问题
谢谢



表：
SQL> desc emp_tes;
 名称                                      是否为空? 类型
 ----------------------------------------- -------- ---------------------------

 EMPNO                                              NUMBER(4)
 ENAME                                              VARCHAR2(10)
 JOB                                                VARCHAR2(9)
 MGR                                                NUMBER(4)
 HIREDATE                                           DATE
 SAL                                                NUMBER(7,2)
 COMM                                               NUMBER(7,2)
 DEPTNO                    &n