多站点数据复制的BerkleyDB 环境代码演示

网站的内容如有更新的话，总在要在首页表现出来。所以当更新一个地方的时候，总是要同时更新首页。但利用在线自动更新就方便得多啦。以下我们将利用ASP完成这一过程。 一个程序写之前，它的结构要先描绘出来。当结构确定之后，这个程序也已经完成一半了，所差的只是如何用语言去实现它。 根据本站的要求这个自动更新程序的结构（要求）初步定如下： 用数据库以保存所有的更新内容； 在首页上体现出最新更新的10条内容(当然不一定非10条不可啦）； 在首页建个链接，可以弹出窗口按分页查看所有更新内容。 还有一个问题是：更新内容以什么方式输出到首页？一是用ASP直接修改首页，但那样可能不是好办法，因为本站的首页较为笨重，而所需更新的地方只是首页的“最新更新”部份，写起来较为复杂，需要在首页上加入标志，再则如果有镜象站点的话还要一个一个更新。二是首页直接用ASP文件，但那样消耗资源较为严重，速度较慢，特别是首页是大家首先要经过的地方，速度不快会影响冲浪者的心情。三是在首页以插入形式加入ASP或JAVA小程序，比较起来当然是客户端JAVA更理想，本程序采用的是自动生成js文件。-website content updated if so, to the total shown on the first page. So when an update local time, must also update Home. But the use of on-line automatic update it more convenient. Below we will use ASP to complete the process. Before I write a procedure, the structure of its first portrayed. When the structure is determined, the process has been completed, half of the difference is how the language used to reach it. According to the requirements of the site automatically update the structure (requirement) is ten

J2EE 程序员一般都有现成的应用服务器所带的JDBC 数据库连接池，不过对于开发一般的 Java Application 、 Applet 或者 JSP、velocity 时，我们可用的JDBC 数据库连接池并不多，并且一般性能都不好。我们可以自己写一个JDBC 数据库连接池。-J2EE programmers tend to have a ready-made application server release the JDBC database connection pool, but for the general development of the Java Application, applet or JSP, velocity, we can use JDBC database connection pool is not over, and generally not a good performance. We ourselves wrote a JDBC database connection pool.

vb中因该如何备份数据库，整个数据库拷贝是一种方法；该源码提供了另一个方法。-vb because of how the backup database, the entire database is a copy; The source provides another method.

一套完整的账务凭证档案录入系统，能将扫描得到的图像存入数据库，方便地进行查询，编辑。-a complete accounting documents into the system files, it is able to scan the image into a database to facilitate inquiries and editing.

YourBase 2003资料管理软件 + 完部源代码，使用了下面的控件： ================================== Developer ExpressBar 5.1 Raize 3.09 FastReport 2.47 DBisam 3.24 -YourBase 2003 data management software+ End of the Department of source code, use the following controls :================================ == Developer ExpressBar 5.1Raize 3.09FastReport 2.47DBisam 3.24

一个驾校考试的源代码，对vb(Access)数据库编程感兴趣的请注意！-An examination驾校source code, the vb (Access) Database Programming interested Please note!

这是一个转换程序，用于转换简体和繁体字的。欢迎大家下载。-This is the convert gb2312 to bigt programer. You may download it for you program.

数据库相关 -Database-related database-related

INDUCTION MOTOR RUN (Currents and speed as state variables) The motor is running at a specified load. After reaching steady state in an initialization first run, the initial conditions are established for a second run in which the load is pulsating. The dynamic equations are expressed in canonical first-order matrix form adopting currents and speed as state variables, and are solved using ODE45. The user has the choice of selecting one of three common (dq) reference frames: STATOR, ROTOR or SYNCHRONOUS. The torque, speed,and current responses are plotted. -INDUCTION MOTOR RUN (Currents and speed as state variables) The motor is running at a specified load. After reaching steady state in an initialization first run, the initial conditions are established for a second run in which the load is pulsating. The dynamic equations are expressed in canonical first-order matrix form adopting currents and speed

这是用于回滚旧的已经提交过的事务的脚本。可用于在多用户模式中将UNDO（取消）功能嵌入到客户端－服务器应用程序中-This is for rolling back the old has already submitted the affairs of the script. Can be used in multi-user mode will UNDO (canceled) functions into client-server application procedures