The geo-metadata query system is an important component of the spatial data exchange center.
地理信息元数据查询系统是空间数据交换中心的重要组成部分。
Business system users update and query master data typically through the use of their respective business systems.
通常情况下，业务系统用户通过各自的业务系统更新和查询主数据。
In a relational language, such a query would require a join that might span several data tables and system catalog tables.
而在关系语言中，这种查询需要进行也许跨越了多个数据表和系统目录表的联接。
If the query is lost, it might be inconvenient to the requester of that information, but the original data remains in the system and can be requested again.
如果查询丢失，对该信息的请求者可能不太方便，但原始数据保留在系统中，可以再次进行请求。
It is available for query through the EPCIS query control interface, but the means by which master data enters the system is not specified in the current EPCIS 1.0 standard.
可以通过EPCIS查询控制接口查询这些数据，但是当前的EPCIS 1.0标准中没有指定将管理数据输入系统的方法。
Query data is transient data being sent through a system, derived from data that's stored safely within the system.
查询数据是通过系统发送的临时数据，派生自安全存储在系统中的数据。
This package is used to query for data in the source system during the Load operation.
在Load操作过程中，此包用于查询源系统中的数据。
Suppose you need to query an external customer relationship management (CRM) system to retrieve customer's data. Your invocation of the CRM system might look like this.
假定需要查询一个外部客户关系管理(CRM)系统以获取客户的数据。
When an application submits a query to the federated system, the federated server identifies the relevant data sources, and develops a query execution plan for obtaining the requested data.
当应用程序向联邦系统提交一个查询时，联邦服务器识别相关数据源，并生成一个用于获得被请求数据的查询执行计划。
To process the query, the DB2 query compiler consults information in the DB2 federated database system catalog and the data source wrapper modules.
为了处理该查询，DB 2查询编译器查阅DB 2联邦数据库系统编目中的信息以及数据源包装器模块中的信息。
The data in this type of materialized query table is maintained by the system.
这种物化查询表中的数据是由系统维护的。
Analyzing the data mining primitives, query languages, and system architectures.
分析了数据挖掘原语、查询语言和系统结构。
The distributed data query is the core of the distributed database managing system, but the optimized query algorithm is the key technology in query processing.
分布式数据查询是分布式数据库管理系统的核心，而查询优化算法又是查询处理中的关键技术。
It provided condition for systemic data security in stations that we had put Inventory Carriage Query system into production.
现车查询系统的投产使用为车站系统的数据安全提供了条件。
The time taken by the federated system is comparable to the time taken when the query is executed directly against the data source for single-source queries.
联邦服务器所花费的时间是否与直接在数据源(涉及单个数据源的查询中的数据源)上执行查询时所花的时间相当。
The paper introduces optimizing data sources to improve the performance of a OLAP system and the methods of optimizing database, aggregation and memorizing client record query.
通过优化数据源提高OLAP系统的性能，文章详细介绍了优化数据库、聚合及采用记录客户查询的方法。
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。
RDBMS is based on firm mathematics set theory with simple and clear data structure, and powerful query function, so it has become the basic technology for realization of information system.
因为RDBMS是建立在严格的数学集合论基础上的，数据结构简单、清晰，具有强大的查询能力，RDBMS成为实现信息系统的基本技术。
Controllers frequently need to access incoming data, such as query string values, form values, and parameters parsed from the incoming URL by the routing system.
控制器经常需要访问输入数据，如查询字串值、表单值、以及通过路由系统从输入url解析所得到的参数。
The query and inspection system struction of multimedia image data is introduced.
介绍了多媒体图象数据查询和检索的系统结构；
Graphic system can realize data visualization, data query, assistant decision during earthquake by kinds of operation to the map.
图形系统可对地图进行各种操作，完成数据显示、数据查询分析、地震辅助决策等。
The system was provided with function of workspace, data and map management, object operation, spatial query and analysis in the environment of GIS.
该系统具有GIS工作空间管理功能、数据管理功能、地图管理功能、对象操作功能、查询及空间分析功能；
The distribute data query is the core of the distribute database manages system, but the optimized query algorithm is the key technology in query the processed.
分布式数据查询是分布式数据库管理系统的核心，而查询优化算法又是查询处理中的关键技术。
To improve query performance of distributed system, a conjunction data distribution tree is proposed by studying relation between data.
为了提高分布式系统的查询性能，通过研究数据之间的关系，提出一个关联数据分布树。
Query optimization: the goals of query optimization in distributed data integration system are different from those in traditional database system.
查询优化：分布式数据集成系统查询优化的目标与集中式数据库有所不同。
Meanwhile, it introduces the three key technologies for realizing this system: transmission of data, general query and general report forms.
并详细介绍了实现系统的三个关键技术：数据传递、通用查询、通用报表。
In view of the significance of query decomposition and optimization in the Heterogeneous Data Resource Integration System, in-depth research on this aspect was mainly conducted.
考虑到查询分解及查询优化在异构数据集成系统中的重要意义，主要就这一方面进行了深入研究。
In view of the significance of query decomposition and optimization in the Heterogeneous Data Resource Integration System, in-depth research on this aspect was mainly conducted.
考虑到查询分解及查询优化在异构数据集成系统中的重要意义，主要就这一方面进行了深入研究。
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