cardinality

英

美

n.  基数；集的势

计算机

英英释义

noun

• (mathematics) the number of elements in a set or group (considered as a property of that grouping)

双语例句

• There may also be multiple variations for gender and cardinality.
  性别和基数也可能有多种变体。
• That is, the restrictions constrain the cardinality of that property on instances of that class.
  这类约束应用于那个类的实例时就会给出属性的基数信息。
• Join cardinality is the number of rows produced when two row sets are joined together.
  连接行集数是两个行集被连接在一起时产生的行集数。
• 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。
• The value of the second argument to TRIM_ARRAY must be a value between 1 and the cardinality of the first argument.
  针对TRIMARRAY的第二个参数的值必须是1和第一个参数的基数之间的值。
• Note: The Relational DAS assumes that all containment relationships are cardinality one-to-many.
  注意：关系型DAS假定所有包容关系都是一对多的二元关系。
• 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。
• So how optimizer work out the cardinality with range filter in TABLE JOIN?
  那么优化器怎么出来表连接中的范围扫描呢？
• There are eight qualifying records after applying the local predicate ( Outer Input Cardinality value is8).
  在应用本地谓词以后，有8条合格的记录（外部输入基数值是8）。
• This problem is a generalization of the problem of finding the maximum cardinality clique of an unweighted graph.
  这个问题是寻找无权图的最大团问题的推广。