What is Candidate Key? | DBMS Tutorials for Beginners in Hindi #17
#candidatekey #datastructure #dbms #tutorial #beginners
A candidate key is a set of attributes in a relational database table that uniquely identifies each record in the table. It is a subset of the attributes in the table that can serve as a primary key, which is a unique identifier for each record. The candidate key can be any combination of columns in the table that are unique, but it is most common to use the minimum number of columns required to create a unique identifier for each record. Candidate keys play an important role in database design, as they are used to enforce referential integrity, which helps to maintain the accuracy and consistency of the data in the database.
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