In the realm of relational databases, keys play a pivotal role. They serve as unique identifiers for each tuple in a table. This article focuses on two such significant keys - the super key and the candidate key. A super key is a combination of attributes or columns that distinctly identifies every row in a table. On the other hand, a candidate key is a set of attributes that identifies the tuples in a relationship or table. Let's delve deeper into the differences between a super key and a candidate key.
Your Total Savings ₹3819 What is a Super Key?
Super Key is a set of attributes or columns that uniquely identifies each row in a table.
What is a Candidate Key?
A candidate key is a set of attributes that recognizes the tuples in relation or table.
What is the main difference between Super Key and Candidate Key?
The main difference is that every super key cannot be a candidate key, but all candidate keys are super keys.