What is cardinality in computer science?
An example of an AI chatbot conversation about cardinality in computer science.
What is cardinality in computer science?
Cardinality refers to the number of elements in a set or the number of distinct values in a database column.
Can you give me an example of cardinality in databases?
Sure! In a database of students, the cardinality of the 'student_id' column is the total number of unique student IDs.
How does cardinality affect database performance?
High cardinality can improve performance by allowing for more efficient indexing, while low cardinality may lead to less efficient queries.
What are the different types of cardinality?
There are three main types: one-to-one, one-to-many, and many-to-many, each describing the relationship between entities.
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