数据库采用串口通讯源代码，功能更强大的海外…

用vb编写 的控件非常漂亮的界面控件 感谢下载-prepared with the controls very nice interface controls thank Download

用microsoft-visualbasic开发图书馆应用程序

access 绩效考核系统 access 绩效考核系统 -access system

常用SQL语句开发实例!-develop examples by SQL.

vb个人信息管理的源代码，很适用-vb personal information management source code is applicable

SQL server 数据库数据类型的详细介绍。-SQL server database data types in detail.

Qt SQL Browse是一个简单的、泛化GUI数据库浏览器前端。该工具是一个非常简单的Qt数据库类的汇集器。数据库抽象由Qt数据库驱动程序提供-Qt SQL is a simple, generalized database browser GUI front-end. The tool is a very simple database Qt pool for the category. Qt database abstraction from database-driven procedures

vc访问数据库的方法，简单实用，可以查询，编辑更新数据，执行sql。-vc access to the database approach is simple and practical, query and edit data update, the Executive sql.

使用ADO的数据复制原型 这是一个几乎在七年前我试图做的数据复制原型。它的一些部份可能仍然很有趣。最初，它使用了一个建造在ODBC上的的专有库，但是它可被容易地修改以使用任何的数据库接口层。 演示例子使用ADO和MSDEV 中自带 Nwind.mdb MS Access数据库。 这个原型引擎使用一个实际的或者人工制定的唯一的数据库内索引来标识一个记录。 在插入记录时可以正确处理Auto-Number或Counter数据类型。通过初始化复制条目集合或复制器类的Init方法中的链接描述符来执行复制计划。参考DemoCopyHelper.cpp这个例子. - Uses ADO data duplication prototype this nearly the data duplication prototype which I attempts in seven years ago to do. Its some parts still very were possibly interesting. At first, it has used a construction on ODBC appropriation storehouse, but it may easily revise uses any database interface level. The demonstration example uses in ADO and MSDEV brings Nwind.mdb MS the Access database. This prototype engine uses to be actual or in the artificial formulation only database the index marks a record. When inserts the record may correctly process Auto-Number or the Counter data type. Gathers or in the duplication kind of Init method link description symbol through the initialization duplication claus

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