Question 349 B+ –tree are preferred to binary trees in databases because A Disk capacities are greater than memory capacities B Disk access is much slower […]

Question 350 B+ –tree are preferred to binary trees in databases because A Disk capacities are greater than memory capacities B Disk access is much slower […]

Question 351 Consider join of a relation R with a relation S. If R has m tuples and S has n tuples then maximum and minimum […]

Question 352 These are five records in a database: Name Age Occupation Category Raman 27 CON A Akbar 22 ENG B Janifar 28 DOC C Maya […]