yiyuan

这是一个将数据库数据转换成sparql查询的工具，很强大！(This is a tool to convert the data into a query sparql, very powerful!)

python聊天机器人(扫码登陆网页版微信)

使用OLE DB操作数据库的方法，这是C++的源码(OLE DB operation method of the database, which is C++ source)

Ingres_2006_QEF_Overview,Ingres数据库的查询执行计划说明，对研究Ingres数据库很有用(Ingres_2006_QEF_Overview, Ingres database query execution plan shows that the study of Ingres database very useful)

适用于原料车间，原料混合配料过程的监控和管理，能引导和规范配料过程，并用数据库存储配方，方便查询统计。(Suitable for workshop materials, raw material mixing ingredients monitoring and management processes, to guide and regulate the batching process and use the to store recipes, easy access statistics.)

在VC下访问和创建Access数据库的例子，很清楚的程序(in VC visited and the creation of the Access database examples, it is clear that the procedures)

数据库与windows窗口的连接。简单的增删查询(Connect to the and the windows of the window. Simple deletions inquiry)

本系统有三种操作权限，其中，营业员只可以执行开台、点菜、买单及查询日收入操作；领班可以执行开台、点菜、买单、进货、添加新员工、日收入及月收入查询等操作；经理具有最高权限，除了领班及营业员的操作权限外，还可以设置员工权限、添加商品信息及菜式信息、备份与恢复数据库及初始化数据等操作。(The system has three operating authority, which can only be executed Founding salesperson, a la carte, pay and check daily revenue operations foreman can perform Founding, a la carte, pay, purchase, adding new employees, daily income and monthly income of inquiry operation manager with the highest authority, in addition to the foreman and the operating authority salesperson, you can also set permissions for employees, product information and dishes to add information, database backup and recovery, and initial data and other operations.)

简单读取数据，返回json集合,microsoft sql server (writer to json data,open microsoft sql server database)

说明：  PowerBuilder商场零售系统开发实例导航(PowerBuilder Store Retail System Development Example Navigation)