-
又一个使用Oracle8 OCI API 实现的一系列包装类
又一个使用Oracle8 OCI API 实现的一系列包装类-Another set of wrpped class implemented by oracal7.3/8.0 OCI API
- 2023-02-02 20:45:03下载
- 积分：1
-
一个对数据库的编程，用VB编写，可以交流
一个对数据库的编程，用VB编写，可以交流-one pair of Database Programming with Visual Basic, to be shared
- 2022-09-24 16:15:03下载
- 积分：1
-
provide oracle database. Relatively simple, development only need to contain a h...
提供对oracle数据库的访问。比较简单，开发时只需要包含一个头文件就可以了-provide oracle database. Relatively simple, development only need to contain a header files can be a
- 2022-04-19 16:57:24下载
- 积分：1
-
a data derived Application hope for your consideration!
一个数据导出的应用实例,希望能供大家参考!-a data derived Application hope for your consideration!
- 2022-04-07 04:15:26下载
- 积分：1
-
使用访问数据库的com
使用访问数据库的com -access to the database using the com
- 2022-04-27 07:42:57下载
- 积分：1
-
学生档案管理系统,delphi源码,里包数据库.
学生档案管理系统,delphi源码,里包数据库.-Student records management system, delphi source code, in package database.
- 2022-02-06 16:16:07下载
- 积分：1
-
感应电机的运行
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
- 2022-07-13 20:22:44下载
- 积分：1
-
本程序利用MFC技术，C++语言编写完成。其中核心技术包括有：利用MSComm控件完成单片机与上位机的通信，利用ODBC数据库接口技术把采集的温度数据存储到上位...
本程序利用MFC技术，C++语言编写完成。其中核心技术包括有：利用MSComm控件完成单片机与上位机的通信，利用ODBC数据库接口技术把采集的温度数据存储到上位机。-This procedure using MFC technology, C++ language prepared. The core technologies include: the use of MSComm control the completion of MCU and host computer communication, the use of ODBC database interface technology to collect the temperature data is stored to the host computer.
- 2022-08-08 19:13:29下载
- 积分：1
-
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...
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
- 2022-08-07 12:26:37下载
- 积分：1
-
good yo
这个程序不错哟-good yo
- 2022-06-01 17:06:28下载
- 积分：1
