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What Is Super Key in Dbms

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What Is Super Key in Dbms
What Is Super Key In Dbms?
Superkey - A superkey is defined in the relational model as a set ofattributes of a relation variable (relvar) for which it holds that inall relations assigned to that variable there are no two distincttuples (rows) that have the same values for the attributes... in Software
What Is Super Key In Dbms Give Example?
A superkey is a combination of attributes that can be uniquely used to identify a database record.With primary key if any other attribute is added then that combination is called super key in other words,primary key is the minimum possible... in SQL & Databases
What Is The Primary Key, Super Key, Foreign Key And http://www.blurtit.com/search/?query=What+Is+Super+Key+In+Dbms%3F&st=rk&cid=9673591489&page=q152488.html http://www.blurtit.com/q152488.html

Superkey - A superkey is defined in the relational model as a set of attributes of a relation variable (relvar) for which it holds that in all relations assigned to that variable there are no two distinct tuples (rows) that have the same values for the attributes in this set.
Equivalently a superkey can also be defined as a set of attributes of a relvar upon which all attributes of the relvar are functionally dependent. For example, the bank account number is a super key in the bank accounts table.

What Is Super Key In Dbms?

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