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What is index cardinality?

Answer Posted / uday

According to what i have observed, cardinality is the number
of count of nodes in the BTree of respective index.

If you create a table with with name attribute and inserted
into 100 new names and added and index.

then if you see the cardinality, certainly it wont be 100.
it will be some thing less than 100.

thats it....

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