在打开有道词典的时候经常提示ActiveX的一个错误.其实这是由于Flash升级引发的Bug导致的.

只要删除注册表中的

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\方框

就可以解决这个问题

转自:ORACLE CLINIC

这个脚本可以用来分析当前重做日志文件(redo logfile)已被用到了什么位置(position)、还剩余多少空间和已使用的百分比:

set linesize 200 pagesize 1400;
select le.leseq "Current log sequence No",
       100 * cp.cpodr_bno / le.lesiz "Percent Full",
       (cpodr_bno - 1) * 512  "bytes used exclude header",
       le.lesiz * 512 - cpodr_bno * 512 "Left space",
       le.lesiz  *512       "logfile size"
  from x$kcccp cp, x$kccle le
 where LE.leseq = CP.cpodr_seq
   and bitand(le.leflg, 24) = 8;

Sample:

SQL> set linesize 200 pagesize 1400;
SQL> select le.leseq "Current log sequence No",
  2         100 * cp.cpodr_bno / le.lesiz "Percent Full",
  3         (cpodr_bno - 1) * 512  "bytes used exclude header",
  4         le.lesiz * 512 - cpodr_bno * 512 "Left space",
  5         le.lesiz  *512       "logfile size"
  6    from x$kcccp cp, x$kccle le
  7   where LE.leseq = CP.cpodr_seq
  8     and bitand(le.leflg, 24) = 8;

Current log sequence No Percent Full bytes used exclude header Left space logfile size
----------------------- ------------ ------------------------- ---------- ------------
                    189   90.7612305                  95169536    9687552    104857600

/*  如上结果显示当前重做日志号为189，使用量百分比是90.7%
    当前日志被使用到了95169536+512 bytes(重做日志文件头)的位置，
    还剩余9687552 bytes的空间，该重做日志的总大小为104857600=100MB
*/

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安装后折腾了很长时间,总是连接不上我vm里的oracle10g.后来看了一下使用手册才知道需要通过File–>Oracle User Wizard创建一个工具用来连接的用户才可以.

这个图是我的vm中的oracle10g的情况,没有打开asm,systemos的监视.没有做过全备和闪回.

转自: Vim Introduction and Tutorial

I often tried to learn the great Emacs editor/IDE/operating system. The last time I tried it, I spent some time getting comfortable with it until I wanted to customize my .emacsfile.

That was the point when I entered vi .emacs. As soon as I realized what I’ve done, I knew that Vim has won me over a long time ago.

So, here I am – using Vim as my editor¹ of choice.

Another big motivational boost came after I discovered that my preferred shell (ZSH) has an awesome vi-mode including the command mode (yes, you can switch between command and insert mode!).

Vim has a great deal of features, and learning them takes some time. Of course there are many online-tutorials and tips’n’tricks pages, but the help-files are very good too! There are overview-pages, summary pages and some comments at the commands.

I took the approach to start using some tutorial and let the help-system guide (type :help <command> to get help for the command) me through the rest. I like to try the commands in a test-file, and take a short note of important commands.

Another reason I like to use Vim is because it’s much more healthy than Emacs (using the default-keymappings). Healthy? Many commands are easily typed with a single keystroke – the virtue of a modal editor, instead of long command-chains with lots of modifier keys. Even if you have a natural keyboard, pressing Ctrl, Alt etc is certainly not natural at all.

Just remember: Vim’s basics are really very simple, but in combination the simple commands become very powerful.

阅读全文

" Author: Stanley Sun <coolingverse at gmail.com>
" Version: 1.4 – 2011/5/21 10:15:14
"
" What’s New:
"   1.转到插入模式时 StatusLine 颜色反转
"   2.对 StatusLine 中的各个元素进行了分组设置
"   3.在 StatusLine 中的encoding后加入文件的format信息

下载: _vimrc_1.4.vim