ORACLE:    CREATE OR REPLACE VIEW V_FA_ADD_CO AS

             SQLSEVER:    IF EXISTS (SELECT 1
                                                            FROM  sysobjects
                                                            WHERE  idobject_id ('V_FA_ADD_CO')
                                                             AND   type = 'V')
                                    DROP VIEW V_FA_ADD_CO;
                                    CREATE VIEW V_FA_ADD_CO AS

     2. the equal between join and (+)
      
       the table(its fields stay with (+)) right  join another  corresponding   table.
       for example: select * from a,b where a.id=b.id(+)
               equals  select * from b rigth join a on a.id=b.id
               equals  select * from a left join a on a.id=b.id

        notes:join先匹配有对应的记录，
              （＋）却是按顺序来的 

    3. substr,substring
      for example: there is a table's field "userName" and it's value is "wanghuiling".
       sqlserver: substring(userName,0,4) = "wan",substring(userName,1,4) = "wang"
       oracle:  substr(userName,0,4)="wang",substr(userName,1,4)="wang"
   
 4. link sign
     sqlserver: "+"
     oracle:"||"
 
5. update a table's some fields

     for example:there are two tables: students1 and students2

     sqlserver:update students     (can't use alias)
                   set name=s2.name,sex=s2.sex,age=s2.age,tel=s2.tel
                   from students s2 where s1.id=s2.id;
     oracle: update students1 s1
               set (name,sex,age,tel)=
               (select name,sex,age,tel from students2 s2 where s1.id=s2.id);

6. Date
    for example:there are a field of  date type:input_date  and its value is 2007-08-09.   
    sqlserver : year(input_date)=2007,month(input_date)=8,day(input_date)=9
     oracle : to_char(input_date,'YYYY')=2007, to_char(input_date,'MM')=8, to_char(input_date,'DD')=9

     sDate : a java String variable
     sqlserver : input_date = '"+sDate+"' 
     oracle : input_date =  to_char( '" + sDate + "',' 'YYYY-MM-DD'')

         Usually,When we develop our web application,we need create menu.We can use Javascript to design web menu,but if thus,we have to compile many codes,and our application hasn't good  revisability and maintainability .Struts-menu provides us a convenient web menu design way,we can put our web menu data in  a menu-config.xml configuration file,and read the data with struts-menu lable.

   2.  Struts  Menu Example
    
        You can go here http://demo.raibledesigns.com/struts-menu/ to see the example;
        Or download the example application :struts-menu-2.3.zip,follow the below instruction:  
               Unzip it to a local directory.  
               Download and install Tomcat or another Java Servlet container.  
               Put struts-menu.war in Tomcat's webapps folder and start the server. 
               Go to http://localhost:8080/struts-menu 

 3.   Integrating Struts Menu into your application

      1.  Place struts-menu-2.3.jar into your app's WEB-INF/lib directory.(maybe you also need put common-lang.jar)
      2.  Place struts-menu.tld,and struts-menu-el.tld into your app's WEB-INF directory
      3.  Copy the common,images,scripts,template,styles directory from the above struts-menu.war exmaple application  to your web directory.(if use Myeclipse,put those directorys in webroot directory)
      4.  Add the plug-in settings to your struts-config.xml file.                 
             
               <plug-in className="net.sf.navigator.menu.MenuPlugIn">
                         <set-property property="menuConfig"
                                     value="/WEB-INF/menu-config.xml"/>
                </plug-in>
     
        5.  You will need to declare your menu's attributes in a your App /WEB-INF/menu-config.xml file.Here's  a short  snippet of what might look like:        
       
             <Menu name="contactMenu" title="Contact" location="?Contact">
                  <Item name="email" title="E-Mail" location="?EMail"/>
                  <Item name="phone" title="Phone" location="?Phone"/>
             </Menu>
    
         6.   Add a taglib declaration to the top of your JSP: 

        <%@ taglib uri="http://struts-menu.sf.net/tag" prefix="menu" %>

        7.  Add taglib code to render your menu in your JSP: 

               <menu:useMenuDisplayer name="TabbedMenu"
                   bundle="org.apache.struts.action.MESSAGE">
                    <menu:displayMenu name="Home"/>
                    <menu:displayMenu name="About"/>
               </menu:useMenuDisplayer>       
          
       8.  Below is a whole test.jsp
            <%@ page contentType="text/html; charset=UTF-8" %>
            <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
            <%@ taglib uri="http://struts-menu.sf.net/tag" prefix="menu" %>
            <html:html>
             <head>
             <html:base />
                 <title>menu</title>
   
                 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
                       <link rel="stylesheet" type="text/css" media="screen"
                               href="styles/global.css" />
                      <link rel="stylesheet" type="text/css" media="screen"
                              href="styles/coolmenu.css" />
    
                <script type="text/javascript" src="scripts/coolmenus4.js"></script>
                <script type="text/javascript" src="scripts/cm_addins.js"></script>
            </head>
 
            <body>
               <script type="text/javascript" src="scripts/coolmenu4-config.js"></script> 
   
               <menu:useMenuDisplayer name="CoolMenu4"
                   bundle="org.apache.struts.action.MESSAGE">
                   <menu:displayMenu name="Home"/>
                  <menu:displayMenu name="About"/>
              </menu:useMenuDisplayer>
          </body>
       </html:html>

     import javax.servlet.http.HttpServlet;
     import javax.servlet.Filter;
     import javax.servlet.FilterConfig;
     import javax.servlet.ServletException;
     import javax.servlet.ServletRequest;
     import javax.servlet.ServletResponse;
     import javax.servlet.FilterChain;
     import javax.servlet.http.*;
     import java.io.IOException;
     public class CharacterEncodingFilter
       extends HttpServlet
       implements Filter {

       private FilterConfig filterConfig;
       private String targetEncoding = "ASCII";

     /**
      * Called by the web container to indicate to a filter that it is being placed
      * into service.
      *
      * @param filterConfig FilterConfig
      * @throws ServletException
      * @todo Implement this javax.servlet.Filter method
     */
      public void init(FilterConfig filterConfig) throws ServletException {
      this.filterConfig = filterConfig;
      this.targetEncoding = filterConfig.getInitParameter("encoding");
     }

    /**
     * The <code>doFilter</code> method of the Filter is called by the container
     * each time a request/response pair is passed through the chain due to a
     * client request for a resource at the end of the chain.
     *
     * @param request ServletRequest
     * @param response ServletResponse
     * @param chain FilterChain
     * @throws IOException
     * @throws ServletException
     * @todo Implement this javax.servlet.Filter method
     */
     public void doFilter(ServletRequest srequest, ServletResponse sresponse,
                       FilterChain chain) throws IOException, ServletException {
      try {
        HttpServletRequest request = (HttpServletRequest) srequest;
        request.setCharacterEncoding(targetEncoding);
        chain.doFilter(srequest, sresponse);
          }
      catch (ServletException sx) {
         filterConfig.getServletContext().log(sx.getMessage());
          }
      catch (IOException iox) {
         filterConfig.getServletContext().log(iox.getMessage());
        }
      }

    /**
     * Called by the web container to indicate to a filter that it is being taken
     * out of service.
     *
     * @todo Implement this javax.servlet.Filter method
     */
     public void destroy() {
       filterConfig = null;
       targetEncoding = null;
     }
  }
  
  3.config web.xml
    attention: add these to your web.xml
     <filter>
     <filter-name>EncodingFilter</filter-name>
     <filter-class>com.victory.util.CharacterEncodingFilter</filter-class>
     <init-param>
       <param-name>encoding</param-name>
       <param-value>UTF-8</param-value>
     </init-param>
    </filter>
    <filter-mapping>
    <filter-name>EncodingFilter</filter-name>
     <url-pattern>/*</url-pattern>
    </filter-mapping> 
  4.set database configration
     modify the file:    my.ini
     [client]     default-character-set=utf8 
     [mysqld]  default-character-set=utf8
  5.restart Mysql server
  6.modified your table coding way to utf8
     or ceate your table like this :
     CREATE TABLE `user` (
    `ID` int(11) NOT NULL auto_increment,
    `USERNAME` varchar(50) NOT NULL default '',
    `PASSWORD` varchar(50) NOT NULL default '',
     PRIMARY KEY  (`ID`)
     ) ENGINE=MyISAM DEFAULT CHARSET=utf8; 
  7.restrart your tomcat sever

   OK,it's all.

   Authrougn I have sovled   my problem, I think I  don't have enough understanding for it,  So hope    communicate with you! 

   Attention:mess code also exist in your database,through page hasn't mess code.   
     

        The new year is coming,

        we are looking forward to it.

        New year,new start.

        New year,new look.

        New year,new breath.

        New year,everything is fresh.

        Please say "bye" to the old year,   

        draw a full stop on the past unhappiness.

        value everything you'v owned.

        Please say "hi" to the new year.

        give a smile face to the world,

        a new world is waiting for your coming.      

        LIke a wild untilled land,

        please endow this new year with your passion and imagination.

        And here,i send my best wishes to you,

                Merry christmas!

                Happy new year!

                Live a happy life!

          And say "thanks for your giving" from the bottom  of my heart!  

                                                                                                Y ours  

                                                                                                 xiaoling