super key in dbms with example
A superkey is a set of attributes within a table whose values can be used to uniquely identify a tuple. ... We only need, per our example, the set {employeeID}. This is a minimal superkey—that is, a minimal set of attributes that can be used to identify a single tuple. employeeID is a candidate key.candidate key
A candidate key is a subset of a super key set where the key which contains no redundant attribute is none other than a Candidate Key.Copyright © 2021 Codeinu
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