We propose a temporal database model named GT.
本文给出了一个时态数据库模型GT。
The logical design of temporal database is discussed in this thesis.
论文讨论了时态数据库的逻辑设计过程。
It discuss the temporal relation algebra operations fit to temporal database.
本文重点介绍了适合于时态数据库的时态关系代数。
Continuous nearest neighbors (CNN) inquiry is important in spatial-temporal database.
连续近邻查询(CNN)是时空数据库中一种重要的查询类型。
In the temporal database, temporal granularity is the unit for measuring the temporal data.
在时态数据库中，时间粒度是衡量时态数据的单位，通常用时态类型来表示时间粒度。
Constraints involving multiple time granularities exist in many temporal database applications.
在许多时态数据库应用中，都存在着涉及多时间粒度的约束。
Oracle FlashBack is another temporal database product that supports the record-temporal feature.
OracleFlashBack是另一个时态数据库产品，支持记录时态特性。
The event modification in the event history has the important influence on the temporal database.
事件发生使得系统状态进行转移 ，事件历史中事件变更对时态数据库具有很重要影响。
Spatio-temporal database management system is a kind of DBMS that can deal with both spatial and temporal data.
时空数据库管理系统是能够同时处理时态数据和空间数据的数据库管理系统。
In this paper, temporal database is used in management of postgraduate information and rules at different times.
采用时态数据库对不同时期的研究生信息及研究生规则进行管理。
In spatiotemporal database, geographic entity model includes spatial and temporal information of geographic object.
在时空数据库中，地理实体模型包括地理对象空间信息和时态信息。
In order to implement a temporal database management system, we have to set up a query language for the data model.
为了实现时态数据库管理系统，除了数据模型之外，还需要有一个时态数据库的查询语言。
Spatio-temporal database management system (STDBMS) is a kind of DBMS that can deal with both spatial and temporal data.
时空数据库管理系统是能够同时处理时态数据和空间数据的数据库管理系统。
Erwin discussed the design options for implementing bi-temporality in domain models by using a temporal Database or writing custom code.
Erwin讨论了在领域模型中实现双时态(bi - temporality)的设计选择：使用一个时态数据库(temporal Database)或编写自己的代码。
The spatial information database of land reclamation is a temporal database due to the change of land resource with the coal mining.
沉陷地土地资源信息随着煤炭的开采而不断变化，所以，矿区土地复垦空间数据库是一个时态数据库。
Temporal database systems extend traditional relational database systems. One important such extension is to support time-varying aggregation.
时态数据库扩展了传统的关系数据库，其中一个重要的扩展就是对于时态聚集查询的支持。
Temporal database of land use was used to manage increment data in effect and to retrieve the historical data of land use by the method of plot flow.
土地利用时态数据库能有效地管理增量数据，按“图元流动”的方法可实现土地利用数据的历史回溯。
Integrity is one of the objectives related to information system security, this paper presents a model to specify integrity policies for temporal database management system.
数据完整性是信息系统的安全目标之一，该文描述了一个时间相关的数据库管理系统的完整性策略模型。
According to the theory of temporal database, a design idea of realizing temporal dispose by communicated between TDBASE, a temporal disposal middleware, and non-temporal DBMS is offered.
根据时态数据库的原理，提出了通过中间件TDBASE和非时态数据库管理系统交互实现时态处理的设计思想，描述了TDBASE所支持的时态语法和TDBASE的实现过程。
As there is no commercial temporal database management system, the research on temporal database design methodology based on mainstream database management system has practical significance.
目前还没有商品化的时态数据库产品出现，因此研究基于主流的商品化数据库管理系统的时态数据库设计方法具有重要的实际意义。
TimeDB is an open-source temporal relational database product.
TimeDB是一个开源时态关系数据库产品。
Simplifying the application design, by removing the need to store some kinds of temporal data. By using a Flashback Query, you can retrieve past data directly from the database.
移除某些因需求储存的暂时数据以简化应用设计。通过闪回查询你可以从数据库中直接获取到过去的数据。
Adding temporal data type to system, the temporal data can be managed conveniently and effectively in relational database system.
在系统中引入时态数据类型，使得在关系数据库系统中能对时态数据信息进行方便有效的管理。
When dealing with temporal data you might want to describe the expected precision in database.
因此处理时间类型数据时，你需要定义将其存储在数据库中所预期的精度。
The application of the model can realize editing, updating and spatial-temporal querying of the place name database.
应用这个模型实现了对地名数据库的编辑更新及时空查询操作。
Based on the precipitation database collected from 1950 to 1985 of 98 rainfall stations in Chongqing, we analyzed the precipitation features of Chongqing through temporal and spatial distribution.
根据对重庆市98个雨量站从1950年至1985年的降水资料的分析，初步探讨了重庆市年降水量的时空分布规律。
A dynamic analysis was also applied to the water depth using multi temporal channel maps and a database of water depth of the Lower Yangtze River was also set up.
对多期航道水深测量资料进行动态分析，建成航道水深数据库。
The focus of the research into new GIS-T database is the management of temporal and history data and information that comes from many kinds of resource and services for all kinds of users.
接下来的内容里研究了交通地理信息系统的关于数据库的两个问题，即如何从大量的数据信息中提取有效信息和如何表达交通信息的时间特性这两个问题。
ERP systems support business processes across organizational, temporal and geographical boundaries using one integrated database.
信息管理系统支持跨组织的，并且时间和地域限制使用一个统一的数据库的业务流程。
In this paper, Authors sum up the actuality of Temporal GIS, and introduce the conception and the type of Time Database and Space-Time Database.
文章总结了时态GIS的研究现状，介绍了时间数据库与时空数据库的概念以及类型。
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