Clustering is an important area for research in data Mining, and also an important method in data partition or data grouping.
聚类分析是数据挖掘中的一个重要研究领域，是一种数据划分或分组处理的重要手段和方法。
Data retrieval characteristics including reference data, read-only data, read groups, read size, searching criteria, and data grouping and aggregation.
数据获取特性包括引用数据(referencedata)、只读数据、读分组(read group)、读取大小、搜索条件以及数据分组和聚合。
These capabilities include sorting, grouping, aggregating, and a large set of functions to manipulate the different data types.
这些功能包括排序、分组、聚集以及一个操作不同数据类型的大型函数集。
Each feature provides a distinct approach to grouping data in a table and provides a unique contribution to addressing needs related to large fact or history tables.
每种特性都为分组表中的数据提供了独特的方法，并对解决与事实表或历史表相关的需求有独特的作用。
Grouping column headers gives a clearer and more flexible representation of grid data.
对列标题分组将会使网格数据看上去更清晰更灵活。
When a grouping key is specified, the data must be grouped by this key before the aggregation can be computed, as illustrated in figure 13.
指定了分组关键词后，必须在完成聚合计算之前，依据这一关键词对数据进行分组，如图 13 所示。
If more than one column is aggregated using the same grouping key or without a grouping key, then all the aggregations are computed within the same operation with a single pass over the data.
如果利用相同的分组关键字或者没有分组关键字，来聚合多个列，那么，所有的聚合都在单个数据传递中的相同操作中进行。
In order to support data structures like hash tables and query operations like grouping, anonymous types created by LINQ must provide stable hash codes.
为了支持类似哈希表的数据结构和像分组这样的查询操作，由LINQ创建的匿名类型必须提供稳定的哈希码。
Multiple slices of data can be returned in a single query by using grouping sets or super-groups (such as ROLLUP) in the GROUP-BY clause of the SQL statement.
通过在sql语句的GROUP BY子句中使用多个分组集或超级组(比如rollup)，可以在一个查询中返回数据的多个切片。
It features a strongly typed hierarchy of mathematical objects and commonly used programming data structures for grouping and controlling the objects.
其突出特性是强类型的数学对象层次结构和对对象进行分组和控制的常用编程数据结构。
A ROLLUP can also be used in the grouping expression to return data aggregated at each of the levels in a dimension.
还可以在分组表达式中使用ROLLUP，这会返回在维中每一级上聚合的数据。
You can specify grouping levels to control the order in which your report data is presented.
可以指定分组级别以控制报告数据出现的顺序。
When designing an application, optimize edit view for data entry, grouping related items and prioritizing more commonly edited items at the top of the screen.
当设计一个程序的时候，应该针对数据入口将编辑视图做优化，将有关联的数据条目分组，以及将最常用的数据条目放在屏幕的最上面。
If this happens, try to reorder your conditions in your expression, grouping items of similar data types (Numbers, strings, dates, etc.) together.
如果发生这种情况，尝试调整表达式中条件的次序，把数据类型相似的项(数字、字符串、日期等等)分组在一起。
This provides the logical grouping of SQL queries within a single asset. Together, these SQL queries extract all the related data for a single store asset.
这在一个单独的资产中提供了SQL查询的逻辑分组。
Improve data integrity by grouping queries on the server.
通过对服务器上的查询进行分组来提升数据集成。
In Perl 6, the regular expression would be much simpler and the processing would be easier because this version distinguishes between grouping for matching and grouping for data extraction.
在Perl6中，正则表达式将会更简单，处理也会更加容易，因为这个版本在匹配分组和数据提取的分组之间作了区分。
The grouping operation is about as costly performance-wise as sorting the data by the grouping column.
分组操作的performance - wise成本与依据分组列进行数据排序的成本类似。
Use aggregation and grouping of XML data on the SQL level
在SQL级对XML数据进行聚合和分组
The grouping features of regular expressions can be used to extract data from a string. My RegexGroup function provides that functionality to T-SQL
正则表达式的分组功能可用于从字符串中提取数据。
Note that, depending on the data type of your grouping parameter, you might need a longer binary string.
注意，根据分组参数的数据类型不同，您可能需要使用更长的二进制串。
Table functions are powerful because it can make any data source appear like a DB2 table, which can be then used in normal SQL queries, join operations, grouping, and so on.
表函数的功能很强大，因为它可以使任何数据源看起来类似于db2表，然后就可以用于常规的SQL查询、连接操作和分组等。
Customizable views give you flexibility in grouping, viewing, and hiding data sources.
可定制的视图可以灵活地分组、查看和隐藏数据源。
This type of chart grouping makes it easy to compare data from different parts of an application, or even across applications and servers.
这种类型的图表组可方便用来比较一个程序不同部分的、或甚至不同程序之间、服务器之间的数据。
This is a technique that applies a grouping of data on specified elements common to two data sources and then evaluates additional data elements for a level of commonality or distinctness.
这种技术在两个数据源公共的指定元素上对数据进行分组，然后估计其他数据元素的相同程度或差异程度。
Item streams are created by grouping work items that must be processed using common rules and reference data.
条目流由必需使用通用规则及参考数据处理的组工作条目来创建。
All target connections within the grouping of if, Else if, and Else refinements must target sibling elements on the target data structure.
包含if、Else if和Else细分的组合内的所有目标连接必须针对目标数据结构中的兄弟(sibling)元素。
To ensure accurate reporting of content, accurate, reliable and the comparability between data, report to the statistical data of the necessary screening, grouping, and macro and micro data.
为保证报告内容的翔实、准确、可靠及数据之间的可比性，报告对统计数据进行了必要的筛选、分组，并将宏观、微观数据紧密结合。
This is a way of grouping your cache data.
这是组合缓存数据的一种方式。
It's usually a good idea to distinguish different logical sets of controls or data by grouping them by using visual properties such as color and dimensional rendering.
一般来说，通过分组方式我们可以将不同逻辑的控制或者数据集区别开来。我们通常按照视觉属性来分组，比如颜色和形状。
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