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Cardinality
Translation of "cardinality" into Russian
cardinality
Noun
UK
/ˌkɑː.dɪˈnæl.ɪ.ti/
US
/ˌkɑrdɪˈnælɪti/
cardinality
cardinalities pl
The cardinality of a set is a measure of the number of elements in the set.
Мощность множества — это мера количества элементов в множестве.
Definitions
cardinality
Noun
UK
/ˌkɑː.dɪˈnæl.ɪ.ti/
US
/ˌkɑrdɪˈnælɪti/
The number of elements in a set or other grouping, as a property of that grouping.
The cardinality of the set {1, 2, 3} is 3.
In database management, the uniqueness of data values contained in a column.
A column with high cardinality contains a large percentage of unique values.
In relational database design, the property of a relationship that specifies how many instances of one entity may be associated with each instance of another (e.g., one-to-one, one-to-many).
The ER diagram shows the cardinality between customers and orders as one-to-many.
cardinality
Adjective
UK
/ˌkɑː.dɪˈnæl.ɪ.ti/
US
/ˌkɑrdɪˈnælɪti/
Relating to or expressing the concept of cardinality.
Cardinality constraints limit the number of relationships between tables.
Idioms and phrases
set cardinality
The set cardinality of natural numbers is infinite.
мощность множества
Мощность множества натуральных чисел бесконечна.
cardinality constraint
In database design, a cardinality constraint limits the number of relationships.
ограничение мощности
В проектировании баз данных ограничение мощности ограничивает количество связей.
cardinality function
The cardinality function measures the size of a set.
функция мощности
Функция мощности измеряет размер множества.
finite cardinality
A set with finite cardinality can be counted.
конечная мощность
Множество с конечной мощностью можно пересчитать.
cardinality estimation
Cardinality estimation is crucial for query optimization.
оценка мощности
Оценка мощности важна для оптимизации запросов.