Database-Management-System
August 29, 2024
ER-Model
August 29, 2024
Database-Management-System
August 29, 2024
ER-Model
August 29, 2024

Database-Management-System

Question 342
“X is not a proper subset of any Key” is a 3NF violation called as:
A
Partial dependency
B
Total dependency
C
Transitive dependency
D
None of the above
Question 342 Explanation: 
If X is not a proper subset of any key means there is no partial dependency. And if there is a violation then the only possibility left is transitive dependency, means if there is transitive dependencies then there is 3NF violation.
Correct Answer: C
Question 342 Explanation: 
If X is not a proper subset of any key means there is no partial dependency. And if there is a violation then the only possibility left is transitive dependency, means if there is transitive dependencies then there is 3NF violation.

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