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Database-Management-System
August 29, 2024
Transactions
August 29, 2024
Database-Management-System
August 29, 2024
Transactions
August 29, 2024

Database-Management-System

Question 842

For a database relation R(a, b, c, d) where the domains of a, b, c and d include only atomic values, and only the following functional dependencies and those that can be inferred from them hold :

    a → c
    b → d

The relation is in

A
First normal form but not in second normal form
B
Second normal form but not in third normal form
C
Third normal form
D
BCNF
Question 842 Explanation: 
Primary key of given relation is “ab”.
And there is a partial dependency exist in given FD’s so the given relation is in 1NF but not in second normal form.
Correct Answer: A
Question 842 Explanation: 
Primary key of given relation is “ab”.
And there is a partial dependency exist in given FD’s so the given relation is in 1NF but not in second normal form.

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