VC中动态打开数据库的实现

简单灵活的报表，支持： 1，设定数据源和sql 2，自由选择字段 3，自由选择数据 4，打印预览 5，Excel导出-Simple and flexible reporting, support: 1, set the data sources and sql2, free choice of field 3, to free choice of data 4, Print Preview 5, Excel Export

今天突然找出以前的一小段代码，是对MFC中CDatabase类的一点小改造。CDatabase类中的ExecuteSQL函数可以用于直接执行SQL语句，但是在执行Update，Insert，Delete语句时无法得到影响的行数，新的CDatabaseEx类就实现了这个功能。 -before suddenly find a small section of code, the MFC CDatabase kind of a little transformation. CDatabase category of ExecuteSQL function can be used for direct execution of SQL statements, but the implementation Update, Insert, Delete statement could not be affected when the number of rows, the new CDatabaseEx category on the realization of this function.

一个未完成的通用数据库查询工具，遇到错误时出现奇怪现象（当没有时间返回操作结果时不能再查询）请学习

如何操作数据库的主从关系。。。数据库编程相关，新手入门程序-How to operate a database of master-slave relationship. . . Database Programming related, beginners learn the procedures

只是一个实验,使用Hibernate实现,后台数据库为Oracle,但脚本没有给出.-only an experiment, the use of Hibernate, background for the Oracle database, but the script is not.

实现文件传输,对写internet编程大人是很有用的代码. -achieve file transfer, internet programming for adults to write useful code.

很久以前帮房产商做的一个简单的摇号程序,比较粗糙,帮朋友做的而已,夜里撑着眼皮做的.-房产商a long time ago to help make the摇号a simple procedure, compared Rough help a friend to do it the night撑着eyelids done.

这个程序代码是用c语言来连接 mysql数据库 其中含有子表t1-this program code is use c language connect the mysql data base,including a son-table t1

结晶热力学计算过程。 计算了石榴子石、辉石、黑云母、白云母的电子探针分析结果中全铁分别计算二价铁及三价铁的过程。-Thermodynamic Calculation of the crystallization process. Calculated garnet, pyroxene, biotite, muscovite results of electron microprobe analysis of total iron were calculated divalent iron and trivalent iron process.

算法CART,该算法主要 用于数据挖掘研究领域.-CART algorithm, the algorithm used mainly for data mining research field.