Relational Database Constraints Quiz

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Domain constraints specifies that within each tuple or within each row the value of each attribute has to be ______ or indivisible

atomic

A set of attributes that can help in identifying each tuple in relation uniquely is called a ______

super key

Foreign key must satisfy the following conditions, the first one is it has to be of the same ______ as the attribute it refers to

domain

The second condition is value of foreign key in a tuple either occurs as a value of the primary key or is ______

<p>null</p> Signup and view all the answers

Super keys are sets of attributes that help us to identify each tuple ______.

<p>uniquely</p> Signup and view all the answers

The attribute in a relation that refers to the primary key of another relation is called the ______.

<p>foreign key</p> Signup and view all the answers

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