RetDAO.java (part2) .. will give good points to everyone. Is this logic good?

    public static int delete(Connection conn,String ret_id) throws Exception
    {
        st=conn.createStatement(); 
        rs=st.executeQuery("select * from retailer where retailer_id='"+ret_id+"'");
        rs.next();
        String s1=rs.getString(1);
        String s2=rs.getString(2);
        String s3=rs.getString(3);
        String s4=rs.getString(4);
        int s5=rs.getInt(5);
        String s6=rs.getString(6);
        String s7=rs.getString(8);
        String s8=rs.getString(9);

        System.out.println(s1);
        System.out.println(s2);
        System.out.println(s3);
        System.out.println(s4);
        System.out.println(s5);
        System.out.println(s6);
        System.out.println(s7);
        System.out.println(s8);

        int a=st.executeUpdate("insert into inactive values('"+s1+"','"+s2+"','"+s3+"','"+s4+"',"+s5+",'"+s6+"')");
        System.out.println("a="+a);

        int z=st.executeUpdate("delete from order_table,retailer where retailer_id='"+ret_id+"'");
        return z;
    }

    public static ArrayList viewRequest(Connection conn) throws Exception
      {  
          ArrayList<RetailerBean> l=new ArrayList<RetailerBean>();
          st=conn.createStatement();

          ResultSet rs=st.executeQuery("select * from tag_request_tbl");


          while(rs.next())
          {
              RetailerBean b=new RetailerBean();

              b.setId(rs.getString(1));

             // b.setHandset(rs.getString(3));

              //b.setAccessories(rs.getString(3));
              //b.setSim(rs.getString(3));
              b.setProductid(rs.getInt(2));
              System.out.println(rs.getInt(2));
              l.add(b);
          }

          return l;
      }


      public static void tagApprove(Connection conn,String ret) throws Exception
      {

          st=conn.createStatement(); 
          ResultSet rs=st.executeQuery("select productmodel_id from tag_request_tbl where retailer_id='"+ret+"'");

          //System.out.println(rs.getFetchSize());

          /*while( rs.next())  
          {
              System.out.println(rs.getInt(1));
          }*/

        while( rs.next())  
        {    
         int i=st.executeUpdate("insert into tag_product_tbl values('"+ret+"', "+rs.getInt(1)+")");
         System.out.println("i="+i); 
        }
        int j=st.executeUpdate("delete from tag_request_tbl where  retailer_id='"+ret+"'");
        System.out.println("j="+j);
        }
        //}

      public static void tagReject(Connection conn,String ret) throws Exception
      {
          st=conn.createStatement(); 
          ResultSet rs=st.executeQuery("select productmodel_id from tag_request_tbl where retailer_id='"+ret+"'");

        while( rs.next())

        {    // String product_id=rs.getString(1);
        //  System.out.println(product_id);
        //while (rs.next())  
        //{
            //int i=st.executeUpdate("insert into tag_product_tbl values('"+ret+"', '"+rs.getString(1)+"')");
         //System.out.println(i);
         st.executeUpdate("delete from tag_request_tbl where  retailer_id='"+ret+"'");
        }
    //  }
        }


      public static ArrayList viewRequestRetailer(Connection conn) throws Exception
      {  
          ArrayList<RetailerBean> l=new ArrayList<RetailerBean>();
          st=conn.createStatement();

          ResultSet rs=st.executeQuery("select retailer_id,retailer_name from retailer where status='inactive'");


          while(rs.next())
          {
              RetailerBean b=new RetailerBean();

              b.setId(rs.getString(1));

             // b.setHandset(rs.getString(3));

              //b.setAccessories(rs.getString(3));
              //b.setSim(rs.getString(3));
              b.setName(rs.getString(2));
              l.add(b);
          }

          return l;
      }



      public static void retailerApprove(Connection conn,String ret) throws Exception
      {
          st=conn.createStatement(); 
          System.out.println(ret);
          ResultSet rs=st.executeQuery("select user_name,password from retailer where retailer_id='"+ret+"'");
         int r=st.executeUpdate("update retailer set status='active' where retailer_id='"+ret+"'");
         int h=st.executeUpdate("update login_tbl set status='active' where user_name='"+rs.getString(1)+"' and password='"+rs.getString(2)+"'");
        //while( rs.next())

        //{  // String product_id=rs.getString(1);
        //  System.out.println(product_id);
        //while (rs.next())  
        //{
            //int i=st.executeUpdate("insert into tag_product_tbl values('"+ret+"', '"+rs.getString(1)+"')");
         System.out.println(r);
         System.out.println(h);
    //   st.executeUpdate("delete from tag_request_tbl where  retailer_id='"+ret+"'");
        }
    //  }

      public static void retailerReject(Connection conn,String ret) throws Exception
      {
          st=conn.createStatement(); 
          st=conn.createStatement(); 
          ResultSet rs=st.executeQuery("select user_name,password from retailer where retailer_id='"+ret+"'");
         int r=st.executeUpdate("update retailer set status='reject' where retailer_id='"+ret+"'");
         int h=st.executeUpdate("update login_tbl set status='reject' where user_name='"+rs.getString(1)+"' and password='"+rs.getString(2)+"'");
        //while( rs.next())

        //{  // String product_id=rs.getString(1);
        //  System.out.println(product_id);
        //while (rs.next())  
        //{
            //int i=st.executeUpdate("insert into tag_product_tbl values('"+ret+"', '"+rs.getString(1)+"')");
         System.out.println(r);
         System.out.println(h);
    //   st.executeUpdate("delete from tag_request_tbl where  retailer_id='"+ret+"'");
    //  }
        }
}