daoquery源码

众所周知，软件开发离不开对数据的访问。数据访问在整个软件开发的三层构架中属于数据层，是其它两层的基础。没有了它，存储的数据变的毫无意义。与此同时，数据访问的效率将直接影响到软件的质量。一个数据访问缓慢的系统是客户无法容忍的。一个好的系统必然有一个高效的数据访问方法。由此可见，数据访问在软件开发过程中是非常重要的。如果能统一对数据的访问方法，那么一切有关数据访问方面的问题都可以得到解决。我的系统将可以面向所有的数据源，甚至是未来将会出现的数据源。 预期结果 实现对SQLServer,ODBC,OLEDB数据源以及工业中的Citect，IFix监控软件数据源的统一访问。 开发环境： Microsoft Windows2000开发平台 开发工具： Microsoft Visual C++.NET 数据源： Microsoft SQLServer2000，Citect,Ifix，ODBC 文件说明： DAServer2.dll是一个统一数据访问平台。提供OLEDB标准接口。用户可对其进行访问。 SQLServerProvider.dll是针对SQLServer数据源的提供程序。 config.ini是系统配置文件。- Data access in the entire software development framework is a three-tier data layer, the other is a two-tier basis. Without it, the data storage change meaningless. Meanwhile, the efficiency of data access will directly affect the quality of the software. A slow data access system is the customer can not be tolerated. A good system will be an efficient data access methods. This shows that access to data in the software development process is very important. If reunification of data

my work , update the mfsgridcell functions, adding the combination function of the columns

使用vc数据库的ADO功能执行存储操作的程序！- Uses vc the database the ADO function to carry out the memory operation procedure!

教室管理系统，采用MFC编写，配合数据库软件DB2使用。附带说明文档，源代码详细。使用数据库驱动为ODBC-Classroom management system that uses MFC to prepare, with the use of DB2 database software. Attached documentation, source code in detail. ODBC database driver for the use of

Powerbuilder8.0实用程序设计100例之1-10-Powerbuilder8.0 Utility Design 100 Cases of 1-10

VC下UDL(数据连接文件)的使用方法演示。-VC UDL (data link) the use of demonstration.

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

设备管理系统+数据库创建脚本，vc6.0+sql server 2000实例-Equipment Management System+ Database creation script, vc6.0+ Sql server 2000 instance

Visual FoxPro 8.0版本 解压后可直接运行 不用安装和注册-Visual FoxPro version 8.0 can be directly extracted after running no installation and registration

XML数据结构，是个文件树 AppWizard has created this SLT application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application.-XML data structure is a tree+5.0 SLT has created this application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application.