State whether True or False? (i) In a database, low cardinality means more…
2018
State whether True or False?
(i) In a database, low cardinality means more unique values are stored in a column and vice-versa.
(ii) If a standalone column of a table is connected to the primary key of the same table, then it is called a recursive relationship.
- A.
(i) - True, (ii) - True
- B.
(i) - True, (ii) - False
- C.
(i) - False, (ii) - True
- D.
(i) - False, (ii) - False
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Show answer & explanation
Correct answer: C
Statement (i) is False because low cardinality indicates fewer unique values in a column, not more. Statement (ii) is True as a foreign key referencing the primary key of the same table defines a recursive relationship. Thus, the correct option identifies (i) False and (ii) True.