Relational schema for person, Database Management System



PERSON (PERSON_ID: integer, NAME: string, AGE: integer, ADDRESS: String)


In this instance, m = 3 and n = 4






Sanjay Prasad


b-4,Modi Nagar


Sharad Gupta


Pocket 2, Mayur



Vibhu Datt


c-2, New Delhi

Therefore current relation state reflects only the valid tuples that show a particular state of the real world. Though, Null values can be assigned for the cases where the values are missing or unknown.

Posted Date: 3/6/2013 5:21:34 AM | Location : United States

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