查询词典 database engine

The function design of system includes writing down amendment and pretreatment about spatial database and attribute database. This system provides common and basic functions of GIS. Besides, we can make out the topographical maps, planimetric maps and skiagraph , structure objects of highway construction of design and can inquire two-way between spatial information and attribute information. The system apply Earned Value Method to perform the correlative property to classification statistic.

系统功能设计包括空间数据库和属性数据库的录入、修改以及预处理；系统还提供了一般GIS系统应具备的基本功能，并在此基础上进行涵盖公路设计施工的地形图、平纵缩图、构造物等图形信息与属性信息的双向查询，并运用挣值法等对相关属性进行分类统计以供有关公路工程项目的各方使用。

If you want to access a database multiple times, you should establish a connection using the Connection object. You can also make a connection to a database by passing a connection string via a Command or Recordset object.

如果你想多次访问数据库，你可以使用Connection对象建立一个连接；你也可以通过一个指令或记录对象传递一个连接字符串从而来创建一个到数据库的连接。

There are many collecting methods to get information and it is most important to get it by internet, network database and compact disc database.

竞争情报的搜集方法有很多，在网络环境下，通过因特网和网络数据库以及光盘数据库获得信息显得尤其重要。

Because the information in groupware system has Characteristic of complex, various, large quantity, non-structure or structure complex, close relativity of information, etc, and the traditional relational database can hardly handle these complex and various information. This paper aims at the problems that groupware system meets in application, put forward the research on groupware system based on object-oriented database management system.

由于群件系统中所处理的信息具有复杂、多样、量大、非结构化或结构复杂以及信息间的相关性紧密等特征，而传统的关系型数据库很难处理这些复杂多样的信息，因此，本文针对群件系统对数据库的应用需求，提出了基于面向对象数据库管理系统的群件系统的研究。

A Concise, clear structure database is very important to the design of the database.

简洁、结构明晰的表结构对数据库的设计是相当重要的。

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。

Mr. Crampton said: Bermuda does not have a DNA database in place yet, but we're working with the Department of Health to look at bringing in a database within the foreseeable future.

crampton先生说：百慕大没有一个DNA资料库，在地方，但我们正在努力与卫生署研究，使在一个数据库内可预见的将来。

In DAS model,one important problem faced is how to improve the query efficiency in the encryption database,and cryptograph index technology is one of the methods to improve cryptograph query efficiency in database.

DAS模型下，如何提高密文数据库的查询效率是当前面临的一个主要问题，而密文索引技术是提高数据库中密文查询效率的手段之一。

Cst 290. Database Management Systems Design and Development. This course covers the concepts, theory and application of database management systems and its development methodology.

Cst 290。数据库管理系统的设计和开发该课程涵盖了数据库管理系统的概念、原理和应用，以及它的开发技术。

In database system, data integrity problem can affect the normal use of database.

在数据库系统中，数据完整性问题会影响数据库正常使用。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。