wat is super key

22nd Nov 2016, 4:04 PM
Vaseem Akram
Vaseem Akram - avatar
2 Answers
+ 2
Super key is a column or set of columns which can uniquely identity a row in a table.
23rd Nov 2016, 1:02 PM
Raghunath S
Raghunath S - avatar
+ 1
A super key is a set of columns that uniquely defines a row. This set can have one or more elements, and there can be more than one super key for a table. You usually do this through functional dependencies. Eg : StudentId+StudentName
23rd Nov 2016, 8:00 AM
Akwin Lopez
Akwin Lopez - avatar