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Questions and Answers
Domain constraints specifies that within each tuple or within each row the value of each attribute has to be ______ or indivisible
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 ______
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
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 ______
The second condition is value of foreign key in a tuple either occurs as a value of the primary key or is ______
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Super keys are sets of attributes that help us to identify each tuple ______.
Super keys are sets of attributes that help us to identify each tuple ______.
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The attribute in a relation that refers to the primary key of another relation is called the ______.
The attribute in a relation that refers to the primary key of another relation is called the ______.
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