SQL Super Key Quiz

A super key is a set of attributes that uniquely identifies each tuple in a relation.

3NF is a level of database normalization that eliminates transitive functional dependencies.

A transitive functional dependency occurs when A determines B, and B determines C, leading to A determining C.

<p>A candidate key is a minimal super key that uniquely identifies each tuple in a relation.</p> Signup and view all the answers

<p>BCNF is a higher level of normalization that eliminates all non-trivial functional dependencies.</p> Signup and view all the answers

<p>Closure of a set of functional dependencies</p> Signup and view all the answers

<p>A relation is in 3NF if it is in 2NF and no transitive functional dependencies exist.</p> Signup and view all the answers

<p>A minimal super key for a relation.</p> Signup and view all the answers

<p>When A determines B, and B determines C, then A indirectly determines C.</p> Signup and view all the answers

<p>A stricter version of 3NF where every determinant is a candidate key.</p> Signup and view all the answers

<p>A super key is a set of attributes that uniquely identifies a tuple, while a candidate key is a minimal super key.</p> Signup and view all the answers

<p>Non-prime attributes are attributes that are not part of any candidate key.</p> Signup and view all the answers

<p>BCNF is an advanced version of 3NF that deals with certain types of anomalies that can arise in 3NF.</p> Signup and view all the answers

<p>Transitive Functional Dependency occurs when a non-prime attribute is functionally dependent on another non-prime attribute.</p> Signup and view all the answers

<p>A candidate key is a minimal super key, meaning it should be a super key without any extraneous attributes.</p> Signup and view all the answers