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随着数据库技术的不断完善和快速发展,在国内各类高校的教务教学中得到了广泛应用.本文较详细地论述了Excel和Access数据库相关技术,并使用现有技术对高校考务费用进行智能化数据信息统计、分析、处理,以此推进信息化高校的建设. 相似文献
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数据库技术在电子政务系统中应用广泛。本文主要论述了电子政务系统建设中对数据库建设的要求，并提出了以建立数据仓库为目标的数据库建设方法。 相似文献
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谈管理信息系统的数据库建设 总被引：1，自引：0，他引：1
从技术角度论述了数据及数据规划、数据库的应用形态、数据库逻辑方法、当前流行的数据库及选择、数据库安全策略等一系列有关管理信息系统数据库建设的一些技术性问题。 相似文献
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当今社会随着计算机技术的进步,社会生活方方面面都开始由计算机进行相关数据处理,数据库技术逐步成为应用最广、发展最快的技术,这项技术是整个计算机信息系统和应用程序的核心。数据库是存储和处理数据的主要工具,本文就将对数据库的应用技术和维护展开相关的阐述和研究。 相似文献
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目前,计算机数据库得到了广泛应用,它指存储在计算机内,为了实现一定目的而组建的数据,其构建与维护的技术含量要求较高,因此需要提升相关管理人员的素质,重视数据库用户的技术培养,以确保数据库的良好运行。从数据库设计、数据库网络构建、计算机数据库管理、数据库维护等几个方面对数据库构建与维护管理相关问题进行了研究。 相似文献
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分析了网络数据库及相关技术,针对门户网站PWP的实际开发阐述了将数据集封装成对象对数据库数据进行操作的实现及优点,并结合实际运用测试说明了反射机制和三层架构的实现,体现DNN在网络数据库中的应用。 相似文献
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从医院实际出发,根据数据要求,设计了基于SQL数据库的基本结构,将VFP技术应用在数据库存储过程中,保证了数据访问的高效、安全;对医院计算机设备维修信息和HIS维护信息进行处理,减少人工记录而产生的误差和冗余现象,提高了工作效率。该系统还适用于其它行业的设备维修管理及工作量统计。 相似文献
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本文借鉴库恩科学范式的思想,界定了产业技术范式内涵,刻画了产业技术范式变革过程中技术标准的作用机理。运用专利计量方法定量化描述了传统汽车技术体系形成到新能源汽车技术范式变革的过程,研究表明,传统汽车技术已经经历了完整的范式周期,新能源汽车处于范式发展期且新的技术体系正在形成,进而展示了汽车产业技术变革期技术标准从技术规范到与知识产权相结合的标准体系的演进路径,揭示了技术标准在汽车产业范式演进过程中的规范、桥梁和转化作用,以期为我国新能源汽车产业尽快形成有竞争力的技术标准体系提供理论参考。 相似文献
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能源消费研究视角比较重视短期管理,研究成果往往难以解决能源管理的根本问题,能源供给视角的研究更有利于为能源的长期管理提供借鉴。本文选取能源资源禀赋、经济增长水平、产业结构和技术进步作为影响我国能源供给的主要因素,运用改进熵值法计算各指标权重,构建我国能源供给影响因素指标体系,采用突变级数法和最小二乘法(OLS)对我国1991年-2011年各指标相关数据进行综合分析评价。评价结果表明:四个影响因素对我国能源供给具有显著性促进作用,其中,能源资源禀赋的影响程度最大,其它三个因素的影响程度依次为经济增长水平、产业结构和技术进步。实证评价结果为进一步分析和提炼我国能源供给影响因素提供指导和借鉴。 相似文献
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信息技术的不断创新和发展为提升军事信息系统的能力提供了良机,但新技术的运用与遵循原有技术体制规范之间时有矛盾,同时在兼容原有系统时也有困难。在深入分析技术体制管理现状的基础上,文章探讨了技术体制论证面临的使用需求及互联互通等多种困难。结合工作实际,提出了若干加强技术体制管理和建设的举措,涉及顶层设计、系统协调、预研成果和标准化管理等多个方面。 相似文献
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Benchmarks are vital tools in the performance measurement, evaluation, and comparison of computer hardware and software systems. Standard benchmarks such as the TREC, TPC, SPEC, SAP, Oracle, Microsoft, IBM, Wisconsin, AS3AP, OO1, OO7, XOO7 benchmarks have been used to assess the system performance. These benchmarks are domain-specific and domain-dependent in that they model typical applications and tie to a problem domain. Test results from these benchmarks are estimates of possible system performance for certain pre-determined problem types. When the user domain differs from the standard problem domain or when the application workload is divergent from the standard workload, they do not provide an accurate way to measure the system performance of the user problem domain. System performance of the actual problem domain in terms of data and transactions may vary significantly from the standard benchmarks.In this research, we address the issue of generalization and precision of benchmark workload model for web search technology. The current performance measurement and evaluation method suffers from the rough estimate of system performance which varies widely when the problem domain changes. The performance results provided by the vendors cannot be reproduced nor reused in the real users’ environment. Hence, in this research, we tackle the issue of domain boundness and workload boundness which represents the root of the problem of imprecise, ir-representative, and ir-reproducible performance results. We address the issue by presenting a domain-independent and workload-independent workload model benchmark method which is developed from the perspective of the user requirements and generic constructs. We present a user-driven workload model to develop a benchmark in a process of workload requirements representation, transformation, and generation via the common carrier of generic constructs. We aim to create a more generalized and precise evaluation method which derives test suites from the actual user domain and application setting.The workload model benchmark method comprises three main components. They are a high-level workload specification scheme, a translator of the scheme, and a set of generators to generate the test database and the test suite. They are based on the generic constructs. The specification scheme is used to formalize the workload requirements. The translator is used to transform the specification. The generator is used to produce the test database and the test workload. We determine the generic constructs via the analysis of search methods. The generic constructs form a page model, a query model, and a control model in the workload model development. The page model describes the web page structure. The query model defines the logics to query the web. The control model defines the control variables to set up the experiments.In this study, we have conducted ten baseline research experiments to validate the feasibility and validity of the benchmark method. An experimental prototype is built to execute these experiments. Experimental results demonstrate that the method based on generic constructs and driven by the perspective of user requirements is capable of modeling the standard benchmarks as well as more general benchmark requirements. 相似文献
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This paper outlines an online acquisition system and describes in brief the various factors involved in the automated environment. The acquisition system database is based on a network model and is structured to handle the complex nature of bibliographic data efficiently and economically to achieve an integrated library system. The comprehensibility of the system has been reflected in the database design stage itself. System design and development factors concerning hierarchical menu-driven operation, as well as considerations of portability with respect to hardware/system software requirements are highlighted. 相似文献
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通过建设双层PDF全文数据库、创建索引和全文检索等实现过程来阐述相关技术的研究和运用。以建设全文数据库为基础,研究结构化信息与非结构化数据的合并管理,对目录数据和全文数据的同步索引,基于Lucene技术,实现档案管理系统的一站式智能化档案全文检索,提升档案查全率。 相似文献
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This explorative paper investigates how firms in the global data-processing industry that seek patent protection for their innovations in Europe have coped with the patentability requirements of the European Patent Office. Starting from a continuous research spectrum with basic research on the one extreme and development on the other, the main hypothesis is as follows: firms that carry out more basic research are more successful in passing the patent office than firms that focus more on development. Basic research explores more novel and unknown technical paths, while development aims more at modifying and redesigning existing products. Therefore, the results from more basic-oriented research are expected to fulfill the patentability requirements relatively more often than the results from development. This hypothesis is tested and largely confirmed for the global data-processing industry (with a sample of 44 firms) in the period 1986–1990, using indirect variables for basic research and development. 相似文献
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数据库管理系统安全技术越来越被人们所重视。本文就数据库安全相关标准、数据库系统面临的安全威胁、数据安全传输常用协议以及数据库安全技术研究趋势谈了自己的一些看法。 相似文献