VC 一个数据库查询系统

一个数据表格控件的实例-A data table examples of control

随心所欲在屏幕上写字-arbitrary write on the screen

将Access表中数据按一定格式存储到Txt文件-Access to the data in the table according to a fixed format document storage of archives

多站点数据复制的BerkleyDB 环境代码演示-multi-site data replication environment code demonstration BerkleyDB

运行环境：Win9x/Me/NT/2000/XP 本软件为DELPHI的编程辅助工具，能够提供信息框设计、ASCII查询、键码查询、颜色码查询等功能。为绿色自由软件，不需安装和注册，下载后即可直接使用。 -runtime environment :"d software for the Delphi programming support tools to provide information box design, ASCII inquiries, and the key code inquiries, color code query capabilities. Green free software, installation and without registration, can be downloaded directly after use.

本案例是有河南郑州中原工学院软件学院的： 张卫中等共同开发的！！！！ 有问题联系：who9999999992008@163.com-this case is Zhengzhou in Henan Zhongyuan Software Engineering Institute : Zhang Wei Medium common development! ! ! ! Problems contact : who9999999992008@163.com

VisualC++数据库系统开发案例精选附盘 -VisualC++ Database system development case Featured attached disk

Excel表格是输入输出经常需要涉及到的。操作Excel表格的方式也多种多样。比如，通过调用Excel程序的COM组件对Excel进行操作。但是，这种方式限制较多，且实现难度比较大。但是，用于访问数据库的组件ADO，是支持多种数据源的，其中就包括Excel文件。我们可以通过ADO组件对Excel文件进行读写访问。当然，在.NET平台上对应ADO数据访问组件的是ADO.NET组件。我编写的这个类就是通过ADO.NET实现了Excel文件的读写。由于时间仓促，功能还不是很完善，会在以后有时间的时候进行版本升级。也请各位高手多多批评指正。-Excel spreadsheet input and output is often of the need to address. Operation Excel variety of ways. For example, by calling the Excel COM procedures for the operation of Excel. However, this approach is more limited and more difficult to achieve. However, for access to the database components ADO, is to support multiple data sources, including Excel file. We can ADO components to read and write Excel files visit. Of course,.NET platform counterparts ADO data access components of ADO.NET components. I prepared this category is achieved through ADO.NET read and write Excel files. Because time is so short, the function is still not perfect, will in future have the time for version upgrades. Members also criticized many exp

使用vb+sql制作的超市前台pos机及后台pos机管理系统，源码分两个文件夹存放了。数据库文件打包放里面了，比较实用，完全适合二次开发。-Produced using vb+ sql front pos supermarket pos machine and back-plane management system, source code stored in two folders. Placed inside the package database files, and more practical, perfectly suited to redevelopment.

一个数据导进（出）EXCEL表的DEMO，很有实用价值。-Introduction of a data into (a) EXCEL table of DEMO, very practical value.