Oracle奔向Internet时代

４月２２日,以“Ｉｎｔｅｒｎｅｔ改变一切”为主题的Ｏｒａｃｌｅ大世界在北京举行,这是Ｏｒａｃｌｅ公司今年举办的规模最大的技术交流和产品展示会。在Ｏｒａｃｌｅ大世界上,观众可以看到Ｏｒａｃｌｅ带来的Ｉｎｔｅｒｎｅｔ计算平台和面向Ｉｎｔｅｒｎｅｔ的ＥＲＰ应用解决方案ｉＳｏｌｕｔｉｏｎｓ,了解到Ｏｒａｃｌｅ８ｉ,Ｏｒａｃｌｅ８ｉＡｐｐｌｉａｎｃｅ,ＯｒａｃｌｅＷｅｂＤＢ以及Ｏｒａｃｌｅ８ｉｆｏｒＬｉｎｕｘ等产品。“ｉＳｏｌｕｔｉｏｎｓ”是这次Ｏｒａｃｌｅ大世界的华彩乐章。这一被称为“革命性”解决方案的…     

基于Developer／2000协同开发环境下FORMS与GRAPHICS的集成 …

文章结合Ｏｒａｃｌｅ应用系统的开发,介绍了一种在Ｏｒａｃｌｅ Ｄｅｖｅｌｏｐｅｒ／２０００协同开发环境下具有Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ结构的集成技术,并给出了Ｏｒａｃｌｅ＾＊Ｆｏｒｍ４．５和Ｏｒａｃｌｅ＾＊Ｇｒａｐｈｉｃ２．５工具的三种集成方法。     

基于Oracle Developer/2000协同开发环境下查询程序的设计

本文结合Ｏｒａｃｌｅ应用系统的开发,介绍了一种在ＯｒａｃｌｅＤｅｖｅｌｏｐｅｒ／２０００协同开发环境下具有Ｃ／Ｓ结构的查询技术,并给出了Ｏｒａｃｌｅ＊Ｆｏｒｍｓ４．５和Ｏｒａｃｌｅ　＊　Ｒｅｐｏｒｔｓ２．５的工具集成方法。     

Oracle巡展全国推广中小企业应用方案

作为全球第二大独立软件厂商,Ｏｒａｃｌｅ公司在１９９９年掀起了一浪又一浪的市场推广热潮。Ｏｒａｃｌｅ８ｉ在业界引起的轰动尚未平息,该公司又宣布将为在Ｏｒａｃｌｅ８ｉ数据库基础上进行产品开发的公司投资１亿美元,以鼓励基于Ｏｒａｃｌｅ８ｉ的应用软件的开发。同时,针对中国市场,Ｏｒａｃｌｅ公司于１月１９日到２月４日,特别推出了“Ｏｒａｃｌｅ８ｉ技术及应用方案全国巡展”,在沈阳、深圳等全国１１个大中型城市推广其技术和产品。Ｏｒａｃｌｅ公司的这次巡回讲座主要面向中小企业的决策人、技术主管和技术人员,针对各…     

VB与Oracle数据库接口的应用

介绍了在ＶＢ５．０开发环境下，对Ｏｒａｃｌｅ数据库进行访问的几种操作方法，并对Ｏｒａｃｌｅ数据库应用程序包中提供的ＳＱＬ＊Ｐｌｕｓ工具进行改进，自行开发出一个Ｏｒａｃｌｅ数据库人机交互系统，极大地方便了用户录入数据，并给出了应用程序实例。     

Oracle Developer／2000的参数及其应用

Ｏｒａｃｌｅ Ｄｅｖｅｌｏｐｅｒ／２０００的开发工具主要有Ｏｒａｃｌｅ＊Ｆｏｒｍｓ４．５，Ｏｒａｃｌｅ＊Ｒｅｐｏｒｔｓ２．５，Ｏｒａｃｌｅ＊Ｇｒａｐｈｉｃｓ２．５，这些工具的集成是通过模块相互之间的参数传递来实现的。本文在介绍各种工具中参数的定义和引用的基础上，重点讨论了模块之间参数传递的方法，并给出了具体实例。     

从客户端访问远程Oracle服务器的方法

介绍利用ＯＤＢＣ技术和ＢＤＥ访问远程服务器的Ｏｒａｃｌｅ数据库的方法,并给出具体的实现步骤,从而为使用Ｄｅｌｐｈｉ（非客户／服务器版）存取远程Ｏｒａｃｌｅ数据的用户提供了捷径。     

协调Powerbulider与Oracle提高应用系统性能

一、使用ＰＢ与Ｏｒａｃｌｅ专用接口ＰＢ与数据库服务器的接口分为两类：一类与某数据库的专用接口（如ＰＢ到Ｏｒａｃｌｅ）,另一类为ＯＤＢＣ接口。由于ＰＢ到Ｏｒａｃｌｅ的专用接口比ＯＤＢＣ接口快得多,因此在应用系统中应使用ＰＢ与Ｏｒａｃｌｅ的专用接口,其具体使用方法如下：１．ＰＢ５与Ｏｒａｃｌｅ的专用接口若使用ＰＢ为５．０～５．０２版本,Ｏｒａｃｌｅ为７．１或７２,则在安装ＰＢ时选用定制安装,并根据Ｏｒａｃｌｅ版本选择专用接口Ｏｒａｃｌｅ７．１或Ｏｒａｃｌｅ７．２,安装完毕后,再将Ｏｒａｃｌｅ客户端安…     

Oracle与Novell联合推出OID

Ｏｒａｃｌｅ与Ｎｏｖｅｌｌ联合推出ＯＩＤ日前,Ｏｒａｃｌｅ公司推出了第一个基于Ｏｒａｃｌｅ数据库,可容纳超过５亿条目的目录软件－ＯｒａｃｌｅＩｎｔｅｒｎｅｔＤｉｒｅｃｔｏｒｙ（ＯＩＤ）。由于该软件使用强大的数据库技术存储目录信息,所以具备只有Ｏｒａｃ...     

如何把SQL＊Forms3.0的应用转换到Oracle Forms4.0

Ｏｒａｃｌｅ Ｆｏｒｍｓ４．０是新一代面向对象的数据库开发工具。本文讨论从ＳＱＬ＊Ｆｏｒｍｓ字符方式的应用转到Ｏｒａｃｌｅ Ｆｏｒｍｓ４．０基于ＧＵＩ的应用时所遇到的问题。本文先介绍转换命令，然后介绍Ｏｒａｃｌｅ Ｆｏｒｍｓ４．０的新特性，最后讨论触发子、主从关系和值清单的转换问题。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate