Super Key, Candidate Key and Primary Key DBMS Database Design (Concepts, Tricks & ShortCut) | 03

Publié le: 16 avril 2015
sur la chaîne: Gate Instructors
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Superkey and Candidate key, DBMS, Databases, Video lecture for gate exam preparation CS IT MCA, a superkey is a set of attributes within a table whose values can be used to uniquely identify a tuple. A candidate key is a minimal set of attributes necessary to identify a tuple; this is also called a minimal superkey. What is the difference between the terms primary key, super key and candidate key used in Database Management System

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