What are some examples of cardinality in computer science?
An example of an AI chatbot conversation about cardinality in computer science.
What are some examples of cardinality in computer science?
Cardinality refers to the uniqueness of data values contained in a particular field. For example, in a database, if a table has a column for 'User ID', the cardinality is high if each user has a unique ID.
Can you give me more examples of cardinality in databases?
Sure! In a database of students, the 'Student ID' would have high cardinality, while 'Gender' might have low cardinality since there are only a few distinct values.
What about cardinality in programming languages?
In programming, cardinality can refer to the number of elements in a data structure. For instance, an array with 10 elements has a cardinality of 10.
How does cardinality affect database design?
Cardinality impacts how you design relationships between tables. High cardinality fields often require indexing for performance, while low cardinality fields might not.
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