Tuples can be uniquely identified by an attribute or set of attributes known as a ___ key.Question 10Answera.Primaryb.Candidatec.Foreignd.Composite

Which is the best definition of a candidate key?Group of answer choicesA set of attributes for which no two tuples share all the same valuesA minimal set of attributes that uniquely identifies each tupleAn attribute that uniquely identifies each tuple

What is the minimal set of attributes that can uniquely identify a tuple in a relational database table?

An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.a.Superb.Primaryc.Candidated.unique

A set of one or more fields taken collectively to uniquely identify a record is called __________a.Candidate keyb.None of the answers are correctc.Super keyd.Primary Keye.Foreign keyClear my choice

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?Question 1Answera.Super keyb.Candidate keyc.Foreign keyd.Sub key