Explanation:However, the limit clause does not support partitioning, so we cannot get the top n within each partition without performing ranking; further, if more than one student gets the same GPA, it is possible that one is included in the top 10, while another is excluded. 6. If there are n tuples in the partition and the rank of the tuple is r , then its ________ is defined as (r −1)/(n−1) .
A. Ntil()
B. Cum_rank
C. Percent_rank
D. rank()
Answer:A
Explanation:However, the limit clause does not support partitioning, so we cannot get the top n within each partition without performing ranking; further, if more than one student gets the same GPA, it is possible that one is included in the top 10, while another is excluded. 6. If there are n tuples in the partition and the rank of the tuple is r , then its ________ is defined as (r −1)/(n−1) .
A. Ntil() B. Cum_rank C. Percent_rank D. rank()
Explanation:Percent rank of a tuple gives the rank of the tuple as a fraction. 7. Inorder to simplify the null value confusion in the rank function we can specify