用VC++的ADO技术访问数据库实例

在VC 6．0的数据库访问技术中，ADO具有高效灵活的特点。可是，目前介绍ADO技术的书籍中，理论多，实例少。本文以实例的方式介绍了VC 6．0中的数据库访问技术ADO，程序演示了应用ADO的ConnectionPtr等接口访问Oracle(8—1—5)数据库与Access2000，并且结合实例对这些接口的应用作了说明；实现了接数据源的动态连接，从数据源中读取所连接的数据库包含的表，以及表所包含的字段与记录值，并且把记录值显示于List Control控件上，同时还实现了SQL语句的应用。     

用VC++6.0访问数据库的技术

本文首先介绍了当今常用访问数据库的接口技术并比较它们的各自特点，接着使用逐步推进的方法详细的讲述了用SQLServer2000建立数据库并用VC＋＋6．0访问数据库的实例技术。     

基于VC＋＋．NET的数据访问技术与实现

为了完成数据管理系统开发中专项数据的组织调用和管理,设计将数据存人到数据库表的结构化字段中,使用VC＋＋程序开发语言和ADO数据访问技术,结合使用ActiveX控件对数据进行安全存储和组织访问,从而达到了简单、安全、快速操作数据库中的数据的目的。文中介绍了微软ADO数据访问技术体系结构、对象模型,以及存储访问数据的原理与方法,并在此基础上给出了基于VC＋＋．NET和ADO数据访问技术存储访问SQLServer数据库数据的程序规划和详细程序代码,此方法已成功应用在数据管理系统的开发中。     

ADO在VC++中的基本应用

本文简要介绍了ADo(ActiveX Data Object)的基本概念、特点，以及在VC＋＋6．0中使用ADO进行客户端数据库路程的基本步骤。     

通过ADO访问Access数据库的设计与实现

本文简单介绍了VC++中访问数据库的几种方法,并介绍了ADO的基本特点,及在VC++中直接通过ADO对Access数据库进行访问的方法,并给出一个完整的使用实例。     

VC下利用ADO访问SQL Server技术

介绍了ADO的基本特点、对象模型以及VC下ADO访问SQL Server数据库的基本技术，并对其中使用的关键数据类型和数据库中二进制数据访问方法进行了较为详细的介绍，给出了访问二进制数据的示例代码。     

用VC++实现基于COM和MTS分布式的三层式应用程序之经验与体会

本文针对用VC＋＋开发COM＋组件的过程中，所得到的一些有用的经验与技巧供大家参考。在目前的有关COM及COM＋的书中，对于用VC＋＋开发组件，写的都很不全面，很多的具体操作都不能满意找到，所以作者在开发组件时，在处理各种具体问题的探索中，得到了一些体会，特别在通过ADO对数据库中图像所进行的各种操作以及对存储过程的访问等方面作了特别说明。     

基于RFID的小区门禁管理系统

介绍了基于RFID的小区门禁管理系统,通过RS232串口连接RFID的读写器与PC机,给出了PC机在VisualC＋＋6．0软件环境下,采用c＋＋语言进行编写软件界面,并利用Vc6．0的ADO访问技术来访问Access数据库,从而实现数据到数据库的保存与验证的具体方法。     

基于ADO的数据库编程技术在VC＋＋中的应用

数据库编程是软件工程的一个重要方面。基于此，文中简单介绍了ADO及ADO连接对象Connection、记录集对象Recordset和命令对象Command等的功能特点，分析了ADO，Connection．Recordset和Command的使用方法，并通过一个简单例子来说明ADO在VC 中进行SQL,Serve数据库编程的基本实现过程。该例子能完成数据库的读取、插入和删除等操作，提供了一种典型的数据库设计方法。     

DAO技术在数据库访问中的应用与实现

对VC＋＋环境下几种数据库访问技术的优缺点进行了简要的分析,并提出了一种利用DAO技术对ADO数据访问代码进行封装的数据库访问策略。这种策略不仅具有ADO的优点,而且使数据访问层与业务逻辑层分开。提高了数据访问代码重用率。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。