A foreign key is one or more data attributes that appear in one table that may be part of, or is coincidental with, the key of another table.
外键是在一张表中出现的一个或多个数据属性；它可以是另一张表的键的一部分，或者干脆碰巧就是另一张表的键。
Supplying a key value implied an update to existing data in the registry.
提供一个键值意味着对注册中心中现有的数据进行更新。
Data stored in Distributed Map can be accessed by handing over a unique key for the data object, also called the cache key.
通过移交数据对象的唯一密钥(也称为缓存密钥)，可以访问存储在分布式映射缓存中的数据。
America's visa system goes some of the way by getting the applicant to key in the data.
美国的签证系统通过申请者键入数据，显示其在这方面的进展。
A key element in the data model is the set of statistics gathered about the data contained in the database and stored in the system catalog tables.
数据模型中的关键元素是一组统计信息，该统计信息收集了有关数据库中所包含的数据和系统目录表中所存储的数据的信息。
A key challenge is effective reference and configuration data distribution in large and highly available SOA implementations.
关键的挑战是在大型的、高可用性的SOA实现中有效的引用及配置数据发布。
These keys can be stored in an existing data table or in a separately created table referred to as the external key table.
这些键值可以存储在现有的数据表中或者存储在单独创建的称作外键表的表中。
Choose an add gate for a service where your caller passes Pointers to data that could be in an arbitrary key.
为服务选择一个添加门，在该服务中，调用者将传递指向数据(可能位于任意一个键中)的指针。
A data warehouse architect, who is the key person in data discovery and data warehouse design.
数据仓库架构师，是数据发现和数据仓库设计中的关键人物。
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。
An XML schema represents the data or information model and, hence, is a key artifact in every software development effort.
XML模式代表数据或信息模型，因此是所有软件开发项目中的关键工件。
Key selection: Key selection in multidimensional data modeling is a difficult issue.
键选择：多维数据建模中的键选择是一个难题。
Instead, use an in memory hash table to cache the data and just keep a key to the data in the session.
相反地，应该使用内存中的哈希表来缓存数据，并且在会话中保存一个对此数据进行引用的键。
In this code snippet, the constant ACRONYM_LIST is the key used to get and set the data in the preference store.
在这个代码片段中，常量acronym_list是用于获取和设置首选存储中的数据的关键字。
Data integration and interoperability is a key requirement in healthcare.
数据集成和互操作是医疗系统中的一个关键需求。
The instances created in WSC are identified using key fields within data messages.
WSC建立的实例可以用数据信息中的关键字识别。
In the Microsoft sharding pattern a "sharding key" is used to map data to specific shards which is the primary key in one of the data entities.
在微软的分片模式中，“分片键”用于将数据映射到特定的分片上，后者就是一个数据实体的主键。
If you don't specify a value, you will see the key with zero bytes of data are stored in the value.
如果您不指定一个值，那么您将看到键在值中存储零字节数据。
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。
The key used for the data encryption could be the same key passed in the original request or another randomly generated key, the latter being more typical.
用于数字加密的密钥可能是在最初请求中传送的同一密钥，也可能是另一个随机生成的密钥，而后者更具代表性。
Reacting to data in real time is a key ingredient for smarter, interconnected systems.
实时处理数据是更灵敏相互联系系统的关键功能。
A dimension table needs a generalized key as the primary key data; this becomes the foreign key in the fact table.
维度表需要作为主键数据的通用键；这将作为事实表的外键。
This example tests the data skew in a scenario in which the partitioning key was changed to S_NATIONKEY.
这个示例测试的是分区键被更改为S_NATIONKEY的场景中的数据倾斜。
This makes sense because you generally want to know whether a data value — rather than a key value — is in a dictionary.
这是有意义的，因为一般希望知道某个数据值(而不是键值)是否在dictionary中。
Planning for SIAs provides key demographic data – “finding” children in remote villages and households for the first time, and "mapping" their location for future health services.
计划开展补充免疫活动（SIAs）提供了重要的人口统计学数据——首次在边远村庄和家庭中“发现”儿童，并在“地图上标出”他们所在的地点以便于今后的保健服务。
Without an index sarg, an index scan will use the index to access the data, but will return every key in the index.
没有索引sarg时，索引扫描将使用索引访问数据，但是会返回索引中的所有键。
InsertJSON expects two input parameters: the unique key value for primary key and the row data in JSON format.
insertJSON需要两个输入参数：主键的惟一键值与json格式的行数据。
Other important changes affect key data structures. Here are the scheduled changes in struct sched_entity.
其他重要改动将影响关键数据结构。
This is important to note because some of they key enhancements in the release address how private data is handled in development.
说明这一点很重要，因为这个发布版中的一些关键增强涉及如何在开发中处理私有数据。
This is important to note because some of they key enhancements in the release address how private data is handled in development.
说明这一点很重要，因为这个发布版中的一些关键增强涉及如何在开发中处理私有数据。
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