cardinality

I know this is a basic question..
We use the term cardinality most of the times...
What is cardinality in simple words..
thomaslijuAsked:
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Steve WalesConnect With a Mentor Senior Database AdministratorCommented:
Cardinality means the number of distinct values of a certain data element.

Gender (Male, Female, Unknown) would be low cardinality.
Employee ID (which is likely unique) would be high cardinality.
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thomaslijuAuthor Commented:
Got the point. I am accepting here are giving points with satisfaction.
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