数据库

The approach is efficient when the database is dynamically updated, the frequency value of each itemset is recorded; so the corresponding support and confidence value can be obtained without constructing the complete lattice, which generates the association rules.

该方法适应于数据库的动态数据递增或递减更新，通过记录项目集在数据库中出现的频率值，不需要构造完整的格即可求得项目集的支持度值和可信度值，以获取大项目集，进而求得关联规则。

For data-bases, it may be necessary to manage not only versions of single objects e.g. a software module, document, but also versions of a collection of objects (e.g. a compound document, a user manual,etc.and perhaps even versions of the schema of database c.g.

对于数据库来说，有必要不仅管理单个事务的文本（例如，一个软件模块，一份文件等等）而且也要管理许多事务（例如一个复合文件，一个用户手册等等）甚至还要管理数据库构图的文本。

The curriculum for principle and the application of database is very conceptacle and practical, which studies database structure, database memory and database design. Database is a technology for data management and processing.

数据库原理及应用》是一门概念性和实践性都很强的专业基础课程，是研究数据库结构、存储、设计和使用的一门软件学科，是进行数据管理和处理的技术。

After analyzing the characters of current hydraulic CAD, the method was put forward to use concurrent computer supported cooperative work to regulate hydraulic CAD, and to realize assistant graphics element drawing, principle drawing formation, data exchange, network communication and background data - base service by employing object - oriented technology, dialog box and control widget technology, input - output of graphics ＆ image and socket technology.

在分析当前液压CAD的特点之后，提出了用并行协同设计模式规划液压CAD，运用面向对象（object-oriented）技术、对话框和控件技术、数据库图库存储提取技术、导入导出图形图像技术和socket技术，具体实现了辅助图元绘制、原理图生成、数据交换、网络通讯和后台数据库服务各个功能，使液压系统计算机辅助设计得到进一步的完善。

Compared with the first generation database designed in Access by National Conge nital Heart Surgery Database Committee, our database is more complex with full p otential, which can totally meet the needs of clinicians and researchers in the study of congenital heart defects and can provide remote information data sharin g digital platform.

该数据库系统与美国心胸外科协会应用Access系统开发的第一代数据库比较，功能更加完善，能够充分满足临床管理、医学统计、科研应用等要求，并可为远程信息共享互换提供数字化平台。

Maintaining the data consistency is a critical technical problem in the distributed database system .

1引言分布式数据库系统在系统结构上的真正含义是指物理上分布、逻辑上集中的分布式数据库结构。

Data stream model is different from traditional database. It has the characteristics of rapidness, real-time, continuousness and boundlessness. Therefore, the algorithms for mining data streams have substantial difference from that of traditional database mining. They are one-pass algorithms.

数据流模型不同于传统的数据库模型，具有快速、实时、连续、无界等特点，由此决定了数据流的查询或挖掘算法与基于传统的数据库的挖掘技术有显著的区别，其算法应是单遍扫描的。

Based on the principle of advance, adaptive, reliability, high efficiency and flexibility, the general configuration strategy and the key technology has been deeply analyzed and optimized with the systematic and community in general and adaptive and contraposition in detail. The harmonic in both respects has been realized technically and the contradiction between adaptive and community solved. With the synthetic developing tool based on the database, the CAPP system called synthetic development CAPP which is of the properties of synthetic, modular redeveloped and integrated has been developed.

本论文以提高系统的先进性和实用性以及高效，灵活为基本原则，对CAPP的总体构成策略及其关键技术进行了深入地分析和优化，宏观上充分体现系统性和通用性，微观上切实体现针对性和适应性，技术上实现二者的协调统一，较好地处理了适应性与通用性这对既相互关联、又相互制约的矛盾；采用基于数据库的综合开发工具模式，研究并开发了综合式、模块化、具有二次开发和一定集成功能的CAPP系统——基于数据库的典型零件CAPP综合开发系统。

How to assure and enhance the security of database, the core of datas storage and management in management information system, has been hot topic which is expected to be solved urgently.

作为信息化的关键——数据库，其重要性也是越来越高，然而由于军队信息化建设才刚刚起步，在很多地方由于数据的安全性和可信度的问题制约了发展的速度，甚至严重影响了信息化战斗力的提高；这就迫切要求在数据库的安全性和可信度上给予决策者以最大的支持。

Cotton bollworm is more serious pest in cotton belt of Xinjiang, China. In order to guarantee the biggest commercial cotton belt sustaining and healthy, Information project of pest monitoring and prediction is carried out in this commercial cotton base. In this research, we are focusing on automatical data acquisition, data delivery, design and construction of database, data processing and data display and forecast based on GIS. Key technologies and difficulty are explored, which is built the manipulable technologies and management platform for regional monitoring and prediction of cotton bollworm.

棉铃虫在新疆棉区危害逐年加重，为保障我国最大商品棉基地的可持续发展，开展了优质棉基地植保信息工程研究，本文结合新疆植保体系发展和未来新技术的动向，重点集中在有害生物数据自动化采集、数据远距离传输、数据库设计和数据库建设、模型处理和GIS系统在预测和信息发布上的应用，探索植保信息工程建设中的难点和关键技术，为区域化棉铃虫监测和预警提供技术保障和管理平台。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。