That is it only brings in one row of data for a unique key combination.
即它在一个唯一键组合上只会产生一行数据。
In addition, the partitioning key must still be based on relational data.
另外，分区键仍然必须基于关系数据。
Each entity in the logical data model is assigned a primary key.
逻辑数据模型中的每个实体都被指定了一个主键。
Step 3: Specify the key data required in XKMS key registration.
步骤3：指定XKMS密钥注册所需的密钥数据。
Data management technology is one of key technology in the extrusion die CAD system.
数据管理技术是挤压模cad系统中的关键技术之一。
Finally, the management and assignment of secret key in data encryption devices and data networks.
对数据加密设备和数据网络中密钥的管理和分配问题进行了探讨。
Although Small satellite is not so complex, the research on new technology in satellite is paid more attention to while temperature control and management of bus data transmission is the key point.
微小卫星本身不复杂，研究把各种新技术应用于微小卫星是其中的应用热点，而总线数据传输和管理是其中相当关键的一部分。
The trace association is a key technology in data fusion of netted radar system.
航迹关联是组网雷达系统数据融合中的一项关键技术。
The coding of baseband data is key technology in RFID system.
基带数据的编码是RFID系统中的关键技术。
In data mining, decision tree algorithm is a key research direction.
在数据挖掘中，决策树方法是一个重点研究方向。
In 2006 it conducted a big ASON field test to verify some key data.
2006年进行了大型ASON现场测试，通过实验验证一些关键性数据。
Metadata interoperability is a key problem in data warehouse environment.
在数据仓库环境中，元数据互操作性是一个关键问题。
The data collection of LCC is one of the key problems in LCC Analysis.
寿命周期费用数据采集是寿命周期费用分析的关键问题之一。
Data encryption is one of the key technologies in network security.
数据加密技术是实现网络安全的关键技术之一。
Loss of fidelity in the data being displayed is another key risk.
显示的数据中保真度的缺失是另一个主要风险。
Data acquisition is one of the key sectors in modern measurement system.
数据采集是现代测量系统的关键环节之一。
Data memory technology is a key technology in network broad-band communication.
数据存贮技术是实现网络宽带通信的关键技术。
Frequent pattern mining is a key problem in many data mining application.
频繁模式挖掘是多种数据挖掘应用中的关键问题。
In detail design phase, this thesis gives data structure as well as key function description.
在详细设计阶段，本文给出了数据结构和关键函数的说明。
Association rule is one of the key technologies in data mining.
关联规则是数据挖掘的主要技术之一。
Data security is a key technology in designing and implementing CIMS.
数据安全性是设计与实施CIMS中的一个重大关键技术。
Massive spatiotemporal data organization in new generation GIS platform is a key technique.
海量时空数据组织是下一代GIS平台所要解决的关键技术。
XML will be a key technique of showing and running network data in new generation.
XML将是新一代网络数据显示与运行的关键技术。
The differential data transmission is the key point in RTK technic.
差分数据传输是RTK技术实现的关键。
Stereo image matching is the key link in extracting elevation information from SPOT data.
立体影像匹配是自动提取SPOT影像高程信息的关键技术。
Coordination and integration of analysis data are the key technology in this system.
该系统的关键环节在于分析数据的协调与集成。
Remote data transmission is one of the key technologies in chain business system.
远程数据传输是连锁业务系统的关键技术之一。
All data in this key is recreated each time the system is started.
每次系统启动时，即会重新建立这个机码中的所有资料。
Product Data Management (PDM) is one of the key techniques in CIMS application.
产品数据管理（PDM）是实现CIMS应用的关键技术之一。
Product Data Management (PDM) is one of the key techniques in CIMS application.
产品数据管理（PDM）是实现CIMS应用的关键技术之一。
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