What does the term “Tuple Cardinality” refer to in a database ?
2023
What does the term “Tuple Cardinality” refer to in a database ?
- A.
The number of keys in a table
- B.
The number of rows in a table
- C.
The number of tables in a database
- D.
The number of columns in a table
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Correct answer: B
The correct option is B: The number of rows in a table. In a relational database, a "tuple" represents a single row or record in a table. "Cardinality" refers to the total count of these unique data rows. Therefore, tuple cardinality is simply the total number of rows.