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Answer Posted / nareshkumar
Cardinality is a property of a join that describes how many
rows in one table match rows in another table.
Cardinality is expressed as the minimum and maximum number
of rows in a column at one end of a join, that have
matching rows in the column at the other end of the join.
The minimum and the maximum number of row matches can be
equal to 0, 1, or N.
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