Question: A _ _ _ _ is a set of one or more attributes whose values allow us to uniquely identify the different tuples in a

____

is a set of one or more attributes whose values allow us to

uniquely identify the different tuples in a relation. In addition, this set of attributes is minimal, meaning that all of its attributes are needed to identify the different tuples. This set may or may not be chosen by the DBA to uniquely identify the different tuples in the relation.

candidate key

primary key

superkey

foreign key

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