cardinality

listen to the pronunciation of cardinality
Английский Язык - Турецкий язык
en önemlilik
(çoğul hâli: cardinalities) Bir kümenin eleman sayısı
Eleman sayısı
(Matematik) nicelik

Связанные Термины

cardinality violation
(SQL) satır sayısı uyumsuzluğu
Английский Язык - Английский Язык
The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many
Of a set, the number of elements it contains

The empty set has a cardinality of zero.

(plural: cardinalities) Mathematics the number of elements in a particular set or other grouping
(plural cardinalities) The number of elements in a particular set or other grouping
The number of occurrences that may exist between occurrences of two related entity types The cardinalities between a related pair of entity types are: one to one, one to many, or many to many See also Relationship
The number of elements in the set; intuitively, the set's "size" or "magnitude" Notation: a double bar over the symbol denoting the set; also "|S|" and "card S" when S is the symbol denoting the set
A property of a relationship that specifies whether an object on one side of the relationship can be related to multiple objects on the other side The cardinality of a relationship can be any one of the following: one to one, one to many, many to one, or many to many
The cardinality of a set measures how many members it contains
In the context of data modeling, a measure of the possible relationship between two organizational entities (e g , 1: M or 1-to-many) (See 113)
The number of rows in a database table
Represents a number or range of numbers; e g , 1 N is used to represent a cardinality of one or more In CL diagrams, cardinalities can be represented by crowfeet or UML notation
The number of distinct values a column contains
The number of elements in a set Contrast: multiplicity
The count of objects in a set of instances of a type
(Data Warehousing Guide) [definition #2] (Database Tuning with the Oracle Tuning Pack)
The number of instances of entity B that can (or must) be associated with each instance of entity A
One of the three modalities which finds expression through the signs Aries, Cancer, Libra and Capricorn These signs share a common dynamic, namely that of initiating action, setting things in motion and providing leadership See also Fixity and Mutability
The number of rows in a table or the number of indexed entries in a defined index
(Data Warehousing Guide; search in this book) [definition #2] (Database Tuning with the Oracle Tuning Pack; search in this book)
the size of a set
A measure of the number of unique values in a database field A continuously-variable field like “transaction amount” is high-cardinality data A “State” field with only 50 values is low-cardinality
The number of values that may apply to an attribute for an given entity
A slot facet that describes whether the slot has just one value (single) or more than one value (multiple) In Protégé-2000, Single is the default
The number of elements in an item of interest not including null values
The number of instances of entity B that can (or must) be associated with each instance of entity A (10)
In database terminology, cardinality is the total number of unique occurrences of an entity (e g person, organization, or transaction) that can participate in a relationship An extremely high cardinality field would be a Web site address, e-mail address or phone number; in fact, these should be unique A high cardinality field would be street address - not unique, but close - there may be more than one "1234 Morningside Drive" in a particular State or in the US A low cardinality field would be State - only 52 variations, including DC and "unknown" An extremely low cardinality field would be a check box - only two variations
The number of different values a categorical predictor or OLAP dimension can have High cardinality predictors and dimensions have large numbers of different values (e g zip codes), low cardinality fields have few different values (e g eye color)
A business rule specifying how many times (minimum and maximum) and entity can be related to another entity in a given relationship
power
cardinality
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