cardinality
美英 [kɑːdɪ'nælɪtɪ]
- n.〔数〕基数
- 网络基数性；势；基数或势
cardinalitycardinality
基数
基数（cardinality）表示访问计划操作符所返回的行的估计数目。访问计划操作符要么是必须在数据上执行的动作，要么是表或 …
基数性
基数性(Cardinality):考虑以"0-1-N原则",当数值分别为0,1,N时，可能出现的结果，其中Ｎ为最大值。时间性(Time):相对时间：函 …
势
势(cardinality)，指集合论中刻画任意集合所含元素数量多少的一个概念。两个能够建立元素间一一对应的集合称为互相对等集合。
基数或势
式中 # 表示集合# 的基数或势（cardinality），对有限集合表示集合中所包含的元素的个数.显然0≤A 1 (X) ≤1，如果A 1 (X) = 1…
集合的基数
《Microsoft SQL... ... 2.2.5 罗素悖论（ Russell s Paradox） 2.2.9 集合的基数（ Cardinality） 2.3.7 量化（ Quantification） ...
关联的基数
硬件英语 ... cassette 录相带 cardinality 关联的基数 character set 字符集 ...
集的势
英语新词汇与常用词汇的翻译(C1) - 商务英语词汇 ... cardinal-bishop 枢机主教 cardinality 集的势 carding mechine 梳理机 ...
结果集中的行数
... SCALE 比例（用于 CARDINALITY 结果集中的行数 INDICATOR 描述符（标识一个空值或者一个截断的值） ...
1
Call a set of integers fat if each of its elements is at least as large as its cardinality.
称一个整数的集合为饱和的，如果它的每一个元素都至少不小于其基数。
2
You may have noticed that the query access plan itself did not change with the increase in cardinality estimate.
您可能已经注意到了，查询访问计划本身并未随着基数估计值的增大而改变。
3
The optimizer depends on accurate cardinality estimates to properly compute the cost of each query access plan considered.
优化器凭借精确的基数估计值来准确计算出每一个待定查询访问计划的成本。
4
As mentioned, the cardinality of the address containment within a contact is assumed by the Relational DAS to be one-to-many.
刚才已经提到，联系人中地址包容的二元关系由关系型DAS假定为一对多的关系。
5
Notice that there is a significant difference between the cardinality shown in the fetch node on the outer side of the join in Figure 7.
请注意在图7中联接的外部Fetch节点上所显示的基数之间有一个显著的不同。
6
Generate the access plan and see what the optimizer estimates the total cardinality (Number of rows) returned by the query will be.
生成访问计划，查看优化器对该查询返回的总基数（行数）的估计值。
7
When examining an access plan, you may find that the estimated cardinality is not as accurate as it should be.
在分析访问计划时，可能会发现与集的基数不像希望的那样精确。
8
In real-life scenarios, typically the cardinality of an output structure in a message will mirror the cardinality of an input structure.
在真实的场景中，输出结构的基数通常等于输入结构的基数。
9
Correlated subqueries are often used to test whether relationships exist without regard to cardinality.
相关性查询通常用于测试某种关系是否存在，而不管返回记录集的大小，
10
Distinct cardinality is the number of distinct values in a column of a row set.
不同的行集数是在列行集上的不同的数值。
11
I would not mind seeing a later revision of RELAX NG that incorporates more flexible cardinality constraints .
我不会介意以后看到合并了更灵活的基数约束的RELAXNG修订版。
12
Give lower priority to operators that do not change the cardinality of the plan.
为不改变计划基数的操作分配较低的优先级。
13
Element , however, lets you intersperse patterns while obeying the cardinality of each contained pattern .
元素允许您在遵守所包含的每个模式的基数同时，可以分散排列这些模式。
14
It has long been understood that cardinality is a core organizing principle of early Chinese cosmological thinking.
在早期中国的宇宙论思想中划分四正方向是一个核心组织原则，这一点早已得到认同。
15
The product of individual column cardinalities is compared to the cardinality of the column group to get better correlation estimates.
较于列组的基数，单个列的基数（cardinality）的乘积将获得更好的相关性估计。
16
Because there are no additional predicates to be applied by the fetch operation, the output cardinality of the fetch node is also eight.
因为这里没有通过提取操作应用附加的谓词，所以提取节点的输出基数也是8个。
17
In addition to the cardinality information, the properties of a role establish how the two entities behave in relation to each other.
除基数信息外，角色的属性还确定了两个实体相互间的行为方式。
18
Strive for no more than one call after a single cardinality find on a home, or a next on an iterator retrieved from a collection.
在本机上找到一个基数，或者通过迭代器从集合中检索到下一个基数后，尽量使用不超过一个调用。
19
Configuration variable included type variable, property variable, port variable and cardinality variable.
配置变量分为类型变量、属性变量、接口变量、基数变量四种类型；
20
If table statistics are not available, then the estimator uses the number of extents occupied by the table to estimate the base cardinality.
如果表统计数据是无效的，那么估计器使用占用的表扩展来估计基本的行集数。
21
XML Schema allows enforcement of specified ordering, cardinality, and data types within a schema instance.
XML模式允许在一个模式实例中使用指定顺序、基数（cardinality）和数据类型。
22
The cardinality of the input schema can determine if multiple values can be selected.
输入模式中的基数决定是否可以选择多个值。
23
The cardinality estimate is slightly higher than the actual value of 4 since the column group statistic is a uniform distribution statistic.
由于列组统计信息是一个均匀分布的统计信息，所以基数估计值比实际值4稍高了一些。
24
You use the radio buttons on this page of the wizard to specify the cardinality of the relationship.
使用向导此页的单选按钮指定关系的基数性。
25
However, the memory allocated for an array is based on its cardinality, and not on the maximum cardinality of its type.
然而，阵列的已分配内存是基于其基数的，而不是基于其类型的最大基数。
26
The cardinality represents the estimated number of rows returned from the access plan operator.
基数（cardinality）表示访问计划操作符所返回的行的估计数目。
27
This paper mainly concerns the construction of one-dimension non measurable set and the cardinality of its class.
该文主要探讨一维不可测集的构造以及一维不可测集全体所组成的类的势。
28
This is actually the per-partition cardinality estimate, and not the total cardinality.
这实际上是每个分区的基数估计值，不是完整的基数。
29
The same cardinality estimate is carried up, and no counts are needed for these two operators.
同样进行基数估计，但是这两个操作不需要计数。
30
This example illustrates the effect that partial statistics have on the ability of the optimizer to estimate the cardinality.
这个示例解释说明了部分统计信息对于优化器估计基数的能力的影响。