DBI202Xuất hiện trong 1 đề thi
When drawing an ERD: (a) Entity sets and their attributes should reflect reality (b) Redundancy is not important, so we can ignore it (c) Avoid introducing more elements into the design than is absolutely necessary (d) Choosing the right relationships
Các lựa chọn
A(a) and (b) and (c) are correct
B(a) and (c) and (d) are correct
C(a) and (b) and (d) are correct
D(b) and (c) and (d) are correct