By definition, a data mart is a subset of a data warehouse designed for a specific group of users or a particular subject area.
根据定义，数据市场是数据仓库的一个子集，是专门针对特定的用户群或特定的主题领域设计的。
To overcome this, we picked the concept of streams: a stream (input or output) only deals with a subset of the data of an element.
为了克服这点，我们使用了流：一个流(输入流或输出流)只处理单个项的数据子集。
With data sampling, only a subset of the data is scanned.
通过数据抽样，只需扫描数据的一个子集即可。
During this activity the source data is analyzed and the subset of the data that need to be migrated is identified.
在这项活动期间，被分析的源数据和需要被移植的数据子集被识别出来。
Constrained list. This component displays a subset of data elements constrained by some factor.
此组件用于显示受某个因素约束的数据元素子集。
Whether a test data subset with optional privacy masking should be created.
是否创建带有可选屏蔽的测试数据子集。
The effects of clustering the rows by their spatial properties rely on accessing just a subset of the data during query time.
按照空间属性聚集这些行的效果取决于在查询时对一个数据子集的访问。
The result is the complete set of required database objects created on the target database with a referentially complete subset of privatized data copied from the source database.
得到的结果是在目标数据库上创建所有所需的数据库对象，并包含来自源数据库的隐私化数据子集。
The mapping between the original message and the service request is a simple one-to-one operation with a subset of the input data being involved.
原始消息和服务请求之间的映射是简单的一对一操作，涉及到输入数据的一个子集。
An easy way to reduce the impact of a data serialization requirement is to see if it applies to a logical subset of the data.
减少数据序列化要求影响的一个简单方法是确定其是否应用于数据的一个逻辑子集。
It could be considered to be a common repository for decision-support data that is available across the entire organization, or a large subset of that data.
可以将之视作可跨整个企业使用的决策支持数据的公共存储库，或其中的一个大型子集。
To improve the performance and lower the storage requirements of this routine, the estimation can be based on a subset of the data using extremely fast sampling on the page level.
为了改进性能并降低例程的存储要求，估算可使用页面级的极快速取样基于数据的一个子集。
If you are unsure, try both and see which one works faster on a subset of your data.
如果您对此不确定，可以尝试这两种实现来处理数据的一个子集，然后确定哪种实现的运行速度更快。
The loss of this data might cause the database to become overloaded, as the cache is no longer acting as a buffer for that subset of the data.
数据的丢失可能造成数据库负荷过多，因为缓存不再充当数据子集的缓冲区。
For example, in this scenario you could calculate the average salary of a subset of the data, such as for managers.
例如，在本场景中，您可以计算数据子集(例如经理)的平均工资。
A user may also want to have predicates to further subset the amount of data returned.
用户还可以使用谓词进一步减少返回的数据量。
For example, a MapGridAgent could be useful for retrieving a subset of data with some calculation performed on each result.
例如，MapGridAgent对于检索数据子集并且针对每个结果执行一些计算可能非常有用。
Data mart: subset of a data warehouse in a more user-friendly data structure.
数据集市：更加用户友好的数据结构中的数据仓库的子集。
Check out examples of a subset of Open Library data.
你可以察看OpenLibrary的一个数据子集的例子。
For example, if Roslyn is interested in her subset containing data for 1000 customers, she would select cust as the start table.
例如，如果Roslyn对包含1000位客户的数据的数据子集感兴趣，她应该选择CUST作为开始表。
Start table: This field contains the key table that is used as a basis to select the data subset.
Starttable：这个字段包含关键的表，该表是选择数据子集的基础。
The InitiateGlossary solution described here incorporates a subset of the data model elements defined in the Data Dictionary as outlined below.
这里所描述的InitiateGlossary解决方案融入了在数据字典内定义的数据模型元素的一个子集，如下所示。
When using Optim TDM to create the test data subset, there is no application-enforced limit on the number of rows that can be copied.
当使用OptimTDM创建测试数据子集时，应用程序对可以复制的行没有限制。
For each subset, user rating data is grouped by user. First line for a user is formatted as.
对于每个子集，用户数据根据不同用户分组。
At each subset, user rating data is grouped by user. First line for a user is formatted as.
在每个子集中，永固打分数据按照用户分组。
Because some of these features are also important for database developers or application-centric DBAs, a subset of data Studio Administrator features are also included in data Studio developer.
由于有些特性对于数据库开发人员或以应用程序为中心的dba来说也很重要，DataStudioDeveloper中还包括Data StudioAdministrator特性的一个子集。
Most often, you want only a small subset of the data in the table, so a full table scan wastes a lot of disk I/O and therefore time.
通常来说，您可能只希望获得表中数据的一个子集，因此全表扫描会浪费大量的磁盘I/O，因此也就会浪费大量时间。
However, each of these applications will have different requirements on the subset of vehicle data that they require.
不过，每个应用程序都将对其所需的车辆数据子集具有不同的要求。
Select the subset of available data structures from the data source.
从数据源中选择可用数据结构的子集。
If you want to move a subset of data, you should modify the SELECT clause accordingly.
如果您只希望移动其中一部分数据，那么您应该相应地修改select子句。
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