Question 490 With reference to cluster analysis in data mining, a distance measure that is NOT used is : A Euclidean distance. B Manhattan distance. C […]

Question 491 If a relation is in 2NF then : A every candidate key is a primary key B every non-prime attribute is fully functionally dependent […]

Question 492 Which of the following is true ? A A relation in 3NF is always in BCNF B A relation in BCNF is always in […]

Question 493 Consider the query : SELECT student_name FROM student_data WHERE rollno (SELECT rollno FROM student_marks WHERE SEM1_MARK5SEM2_MARK); Which of the following is true ? A […]