查询词典 network database

In addition, a new synchronization scheme, Double-Timestamp Transaction-Level Synchronization model is put forward to solve the synchronization problem under the 3-tier replication architecture (Mobile Client - Synchronization Server - Database Server). DTSTLS utilizes a novel double-timestamp strategy to promote the efficiency of synchronization. Besides, it ensures serializability and consistency of the mobile database system through transaction-level conflict reconciliation.Mobile transaction processing is another key technology to provide efficient information service in mobile computing environment.

通过引入一种乐观并发控制方法与两段锁协议相结合的移动事务处理机制，本文重点解决了交互式长事务的问题，并提供了对移动主机任意移动性和数据库系统一致性的支持；在移动对象数据库方面，本文提出了一种新的移动对象数据库模型—离散时空轨迹移动对象数据库模型，重点阐述了DSTTMOD模型中的位置表示方法及位置更新处理策略，并分别给出了基于GRID文件和基于QUAD树的移动对象索引算法。

Based on the summarization of the present research, the future system frame of the blind digital image forensics is proposed. According to the natural characteristics of digital image, the principles of constructing the standard testing database of sample images are also put forward. Moreover, the extensible topology structure is set up and the size of the database needed theoretically is calculated statistically.

在总结前人工作的基础上，提出了数字图像盲取证的系统框架；利用数字图像自然属性特征，根据数字图像取证的测试需求，提出了取证测试专用的标准图像样本数据库建库准则，建立了可拓展的图像库拓扑结构，并利用统计学方法计算了所需的建库规模。

In order to strengthen the management of Yangzh ou's groundwater resource, a database software system of hydrogeology informatio n has been set up on Chinese Windows with Visual Basic 6.0 Programming Language .The database software system has a sodality human-machine interface and visibi lity,and is easily used.

为了进一步加强对地下水资源的管理和预测目的，我们在中文Windows98平台上，运用目前具有兼容多种数据库、可视化很强和运算能力较好的Visual Basic 6.0程序语言，研制一个操作简便、界面友好、可视化强的地下水资源管理信息可视化数据库软件系统。

Magazine on-line; Fibrovascular plant database; Plant specimen; Intro-seed database

在线期刊；维管植物库；植物标本馆；引种植物；种质资源库；珍稀植物库

Research based on data from the organization of multi-resolution, multi-scale data storage solutions for a series of theoretical and technical issues, Virtual Earth focus on the technical framework, spherical tile pyramid model, with tiled OGC WMS services integration, and geospatial services portal integration aspects of a more systematic analysis and experimentation, and come to some conclusions. The main contents are: This paper aims at database security which is a hot topic of information security at present. The database is the most important part of information system and it play an important role.

研究了从数据基础组织到多分辨率、多尺度数据存储所需解决的一系列理论和技术问题，重点在虚拟地球技术的架构、球面瓦片金字塔模型、与OGC瓦片WMS服务的集成、与空间信息服务门户的集成等方面进行了较为系统的分析和实验，并得出了部分结论。

While design the need of database, realization succinct and high effect of the management of database.

同时，对本系统的需求进行数据库的设计，实现简洁而高效的数据库对数据的管理。

Database, SQL language, Delphi 6, database module, library superintendence

数据库，SQL语言，Delphi 6，数据库组件，图书馆管理

However, if and only if, the new character set is a strict superset of the current character set, it is possible to use the ALTER DATABASE CHARACTER SET to expedite the change in the database character set.

如果，仅仅是如果，新的字符集是当前字符集的一个严格的超集，使用ALTER DATABASE CHARACTER SET命令是一个可行的方法。

After seeing the function of graph symbol in processing and constructing pattern symbol database,using the Computer Assistant Designand MapGIS,this paper designs reaches to the realization of the all-purpose land pattern symbol database,and researches the arithmetic of the special pattern s of swampland.

在了解GIS图形符号处理和花纹符号建库功能之后，利用计算机辅助设计技术和MapGIS软件平台具体实现在本专业工作中可实际应用的通用土地花纹符号库，并研究沼泽地特殊花纹的填充算法。

In this thesis, we introduce XML relevant technology and database swapper at first, continue chapter four, chapter five provides display on WEB of XML technology and switch technology of XML to HTML, and then chapter six provides XML application embodiment in the database --The bus inquires about the system online.

在这篇论文中，我们首先介绍XML相关技术与数据库交换技术，接着第四章，第五章给出了XML技术在WEB上的显示及XML到HTML的转换技术，紧接着第六章给出XML在数据库上的应用实例-公交车在线查询系统。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。