DBI202Xuất hiện trong 1 đề thi
Which of the following is an example of a violation of 2NF?
Các lựa chọn
AA non-prime attribute is functionally dependent on part of a candidate key
BA non-prime attribute is functionally dependent on a non-prime attribute
CA non-prime attribute is functionally dependent on the entire candidate key
DThere is a transitive dependency between candidate keys