数据库

In the design and implementation of the database applications part,this paper introduces a method of progressive expansion to design concept structure of the database, and put forward the "pseudo-code" to solve the existing problem in modification complexity and large data redundancy after using the traditional method of normalization theorem to process the database.

在该系统数据库设计与实现部分，本文介绍了运用逐步扩张的方法设计本数据库概念结构过程，并提出了"伪码"的概念以解决利用传统规范化理论处理后数据库存在的修改复杂、数据冗余度大的问题。

The management and quality analysis of the primitive images have been analyzed and studied in this paper, of which the content and structure are as follows:Firstly, the developing background and the meaning of the management and quality analysis of the primitive image, as well as the trends of the management and data quality of the image database studied both in and out of our country, have been discussed in detail.Secondly, the developing direction of the technology of the remote sensing image and the importance of the remote sensing images in the field of economy nowadays have been analyzed systematically. And it is pointed that the primitive image with the elements of interior and exterior orientation will become more and more important as a sort of image production.Thirdly, the hierarchical structure of database, especially the SQL Server adopted in this system, has been deep studied and analyzed in the aspects of Applying Program Interface, Internet Data Connector and ActiveX Data Object.Fourthly, the methods of assessing the quality of the remote sensing image have been put forward in the terms of geometry, construction and the integrality of the assistant information.Fifthly, the model of propagation of errors of the precision of the ground coordinates has been calculated in the steps of inner orientation, spatial resection and answering based on the deep analysis of the principles and processes of inner direction and space resection, which have also been experimented and analyzed in term of numerical value.Finally, the total design and the idiographic realization of the sub-modules have been introduced in detail, based on which the design and development of this system are realized in combination with the program languages such as VB6.0, VC6.0 and SQL.

本文针对原始影像的管理与质量分析进行了深入的研究与探讨，主要内容包括：(1)首先对原始影像管理与质量分析系统的研制背景和意义进行了详细论述，并对影像数据库管理和数据质量研究的国内外动态作了介绍；(2)对遥感影像技术目前的发展趋势以及遥感影像在国民经济生活中的地位进行了深入的分析，并指出附带有内外方位元素的原始影像作为一种影像产品将越来越会引起人们的重视；(3)对数据库的体系结构进行了深入的研究与分析，尤其是对SQL Server数据库的体系结构，从编程接口、Internet数据连接器和ActiveX数据对象三个方面进行了深入剖析；(4)从几何质量、构像质量和附属信息的完整性三个方面提出了对遥感影像质量的评定方法；(5)基于对内定向和空间后方交会原理及过程的深入分析，推导出了从内定向到空间后方交会再到最终求解地面坐标的误差传递模型，并对上述模型进行了数值实验和分析；(6)对原始影像管理与质量分析系统的总体设计和各模块功能的具体实现进行了详细的介绍，并在此基础上联合VB6.0、VC6.0和SQL等编程语言，实现了系统的设计与开发。

So can visit the database directly , no longer need involvement of WEB database ; The control of users visiting can be solved quick-wittedly, improve the security ; Meanwhile , the JDBC database can realize being mutual with users conveniently , offer abundant figure function and sound, such information functions of the multimedia as the video ,etc..

所以可以直接访问数据库，不再需要WEB数据库的介入；用户访问控制可以由数据库服务器本地的安全机制来解决，提高安全性；同时，可以方便地实现与用户交互，提供丰富的图形功能和声音，视频等多媒体信息功能。

So can visit the database directly , no longer need involvement of WEB database ; The control of users visiting can be solved quick-wittedly, improve the security ; Meanwhile , the JDBC database can realize being mutual with users conveniently , offer abundant figure function and sound, such information functions of the multimedia as the video,etc.

所以可以直接访问数据库，不再需要WEB数据库的介入；用户访问控制可以由数据库服务器本地的安全机制来解决，提高安全性；同时，可以方便地实现与用户交互功能。

This security database system can provide safe services with the granularity of the recording level. Simultaneously, its realization has not destroyed the access control mechanism of the original database system.

该安全数据库系统能够提供粒度为记录级的安全服务，同时，它的实现没有破坏原有数据库系统的访问控制机制，对于整个数据库的影响非常小。

The databases available include two organism biodiversity background database: database of birds, database of Amphibia, Reptilia and Mammalia. Five specific biodiversity databases include: database of anti－pollution plants and pollution－indicator plants, database of ornamental plants, database of pests and harmful animals, database of wetland biodiversity.

目前提供的主要数据库包括2个有机体多样性本底数据库：鸟类资源库、两栖爬行动物及哺乳动物库；5个专类生物多样性数据库：绿化观赏植物库、抗污染植物库、环境污染敏感植物库、害虫害兽库、湿地生物多样性库。

As the development environment, SQL SERVER 2000 is regarded as the database server , static news of the classification of the news, template, front desk of page self-defining to turn into, and authority and backup person who shrink a series of functions of database , administrator of backstage supporter ,, have finished all functions of a static news briefing system, realize the course has adopted a large amount of JAVABEANs to realize the complicated logic operation to the database and server..

摘要本系统采用JDK 1.4.1作为开发环境，SQL SERVER 2000作为数据库服务器，实现了对新闻类别无限级分类设置，静态新闻的发布修改删除，前台页面的模板自定义和生成，以及后台管理员权限和数据库的备份收缩等一系列的功能，完成了一个静态新闻发布系统的所有功能，实现过程了采用了大量的JAVABEAN来封装对数据库和服务器实现复杂逻辑操作。

The traditional query tree optimization methods,parallel database optimization methods based on left linear trees and right linear trees,bushy trees,and operation of the forest,have their own pros and cons,they have been more in-depth and maturity of the study.The query optimization method based on multiple weighted tree has studied its model of parallel query plan,its complexity model of parallel query plan and query optimization algorithms.The semantic query method transforms an inquiry into one or several semantic equivalence inquiries then has to find and implement a strategy to achieve a better query.Agent-based parallel database query optimization using Multi-Agent technology to automatically search the integrity constraint conditions which are related to the determined query,there for,the efficiency between several relations' joins has been greatly improved.The parallel optimization algorithm,based on genetic algorithm which is suitable for multi-joins of cluster environment,has deeply studied the relations storage options,multi-joins query optimization and query processing and other key technologies based on cluster parallel database.

传统的查询树优化方法，即基于左线性树、右线性树、浓密树、操作森林的并行数据库查询优化方法，各有优劣，对其的研究比较深入、成熟；基于多重加权树的查询优化方法，研究了其并行查询计划模型、并行查询计划的复杂性模型和查询优化算法；语义查询优化方法将一个查询变换成一个或数个语义等价的查询，进而寻找并执行这些等价查询中具有较好实现策略的一个；基于Agent的并行数据库查询优化采用Multi-Agent技术自动查找与给定查询有关的完整性约束条件，使得多个关系间连接操作的效率得到很大的提高；基于遗传算法的并行优化算法，深入研究了基于机群并行数据库中关系存储的选择、多连接查询优化和查询处理等关键技术。

With these values defined, WordPress will use the designated database characterset and database collation (ie sort order of the letters, numbers, and symbols of a character set) when connecting a database tables.

与这些价值观的界定，在WordPress将使用指定的数据库字符集和数据库的整理（即排序顺序的字母，数字和符号的字符集）时，连接数据库表。

The database of this system is based on Microsoft Visual Database Tools built in Visual Basic 6.0.And the interface of this system is made of costumed windows and system windows. combines At the same time, we use band control and DAO for accessing database and SQL for the implement of finding operation. and use SQL inquire about definitely Realize the book, the stock, to finish granting relevant to operate it teaching materials of teaching materials of teaching material on the basis of this.

本系统的数据库是通过可视化数据管理器建立起来的，而系统的界面采用了自定义窗体和系统窗体相结合的方式制作；同时，系统采用绑定控件访问数据库和数据访问对象访问数据库两种访问方式，并使用SQL查询语言对系统查询功能进行编码并在此基础上实现教材的预订、教材的库存、教材的发放等相关操作。

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。