-
数据读取类excel,datab ase,sql
DEMO程序
数据读取类excel,datab ase,sql
DEMO程序-read data type excel, datab ase, sql procedures DEMO
- 2023-08-02 07:20:02下载
- 积分:1
-
一个VB写的生产管理系统.有access数据库
简单实用.有全部源码...
一个VB写的生产管理系统.有access数据库
简单实用.有全部源码-VB write a production management system. Database access is simple and practical. Have all the source code
- 2022-06-29 04:17:49下载
- 积分:1
-
从数据库中读取数据进行图形显示, 需要MSChart OCX
从数据库中读取数据进行图形显示, 需要MSChart OCX-read from the database data graphics, the need Upstream OCX
- 2023-01-01 10:40:14下载
- 积分:1
-
PB experiments do for myself. To achieve some of these functions. Very helpful.
PB实验,自己做的。能实现其中的一些功能。很有帮助的。-PB experiments do for myself. To achieve some of these functions. Very helpful.
- 2022-08-23 08:43:10下载
- 积分:1
-
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
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
- 2022-08-04 03:22:56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
-
VB数据库应用,例如:SQL的应用和联接
VB数据库应用,例如:SQL的应用和联接-VB database application, for example : SQL applications and connectivity
- 2022-10-12 23:05:03下载
- 积分:1
-
about commandptr s using in ado
关于_CommandPtr在ADO中的使用-about commandptr s using in ado
- 2022-01-30 17:40:56下载
- 积分:1
-
PowerBuilder数据窗口到Excel
powerbuilder数据窗口转EXCEL-PowerBuilder DataWindow to EXCEL
- 2022-01-26 04:51:40下载
- 积分:1
-
java编数据库的应用!文件中的源程序可以让你了解其中的功能及使用!...
java编数据库的应用!文件中的源程序可以让你了解其中的功能及使用!-java database application! The source document so you can understand the function and use!
- 2022-11-15 00:10:03下载
- 积分:1