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Anurag

Anurag

I am a blogger by passion, a software engineer by profession, a singer by consideration and rest of things that I do is for my destination.

What is super key in DBMS?

superkey-feature-img

Super key(What is a super key in DBMS) is the combination of one or more attributes to uniquely identify a tuple. For example, we have a student table with attributes (stu_rollno, stu_name, stu_add, stu_branch, stu_Aadharno). Within this blog(What is the…

What is Key in DBMS?

key-dbms

Hello Friends, In this blog post(What is Key in DBMS), I will let you know about one of the most important and interesting topics of a database which is KEY. What is key in DBMS? While reading the same subject…

3NF – What is the 3NF example?

3NF-third-normal-form

A relation is in 3NF(What is the 3NF example) or the third normal form if and only if it is in 2NF and every non-key attribute is non-transitively dependent on the primary key. By the transitive functional dependency, we mean…