ado连接数据库简单程序，适合初学者。

C++ Builder 数据库开发经典案例解析-C++ Builder Database Development Case Study Analysis

C#编写的datagrid export to excel-C# prepared by the datagrid export to excel

水印背景 为大家搜集免费的计算机学习、编程资料和 优秀的网络资源。-watermark background for you to collect free computer learning, programming information and excellent network resources.

通过本文及配套示例源码你可以更加灵活的控制Excel表格文件，其中包括创建新Excel文件、写入表格数据、读取表格数据(包括对原建Excel文件自已手工添加的行、列数据的准确读取)，删除已有Excel表格，对表格中指定行、列、单元格进行查询、插入、替换等操作，同时还可以将生成的Excel文件转换为按指定分隔符分隔的其它文本格式的文件-adoption of this sample source code and supporting you to be more flexible control of Excel documents, including the creation of new Excel file, write tabular data, reading the spreadsheet data (including the original Excel files built themselves manually add the rows and columns of data accurately read), has been deleted Excel spreadsheet, the forms were designated rows and columns, and cells to conduct inquiries, insert, replace, etc, and also can be generated for the Excel document conversion designated by separate segregated from the other website text files

树形数据库信息操作范例-tree database operation model

连接加密的Access数据库(方法二).zip-connect to the Access database encryption (methods). Zip

vb与sql之间如何建立联接？这里有多种介绍-how to create connection between vb and sql, there are many introduce

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

Visual Basic商品销售管理系统-Visual Basic commodity sales management system

一个delphi的查询数据库的程序，简单，初学者看看是非常有帮助的。-a database of the inquiry procedure, simple, look at the beginners are very helpful.