response.setHeader("Cache-Control", "no-cache"); 
response.setHeader("Pragma", "no-cache"); 
response.setCharacterEncoding("GBK");        
response.setContentType("text/html,charset=GBK");

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Ht

在Google上搜索了一下，其实解决的方式很简单:在Eclipse的window->Preferences->Java->Editor->Content Assist->Advanced上面的选项卡Select the proposal kinds contained in the 'default' content assist list: 中把 Other Java Proposals 选项打上勾就可以了。

# listener.ora Network Configuration File: d:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = d:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = d:\oracle\product\10.2.0\db_1)
(SID_NAME = ORCL)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRI

以下注册码经本人在7.1.1版本测试过，似乎没有问题。

Product code: AT46-MUTG-QJWF-L9H6-7ZFM-XY
Serial number: 01.45678
Password: xs374ca

create or replace trigger trig_emp_change
before insert or update on emp 
for each row
declare
-- local variables here
begin
dbms_output.put('the new empno:'||:new.empno);
dbms_output.put('the old empno:'||:old.empno);
insert into tab_new_table(newid, oldid)
values(:new.empno, :old.empno);
end trig_emp_change;

在Oracle的触发器中，没有以前常用的两张表：inserted

1、传统方式，做完事情之后，再关闭游标
declare
row_data emp%rowtype;
mycursor sys_refcursor;
begin
open mycursor for
select * from emp;
loop
fetch mycursor into row_data;
exit when mycursor%notfound;
dbms_output.put_line(row_data.empno);
end loop;
close mycursor;
end;

2、先把游标中的数据全部取出后，关闭游标，然后再对数据操作。比较适合数据量不大，但要反复遍历的结果集。
declare
type mytype is table of emp%rowtype;
row_data m

大家经常运用DOM4J操作XML文档,如果XML文档存在namespace的话,读写XML经常不工作,解决方案很简单的:

举个例子吧:

比如我一个XML文件头是这样的:

<?xml version="1.0"?>
<scxml xmlns="http://www.w3.org/2005/07/scxml"
version="1.0"
initialstate="coordinator">

请注意这个xml文件是带了namespace的,
读写这个xml要如下操作:
SAXReader reader = new SAXReader();
Map map = new HashMap();
map.put("sc