DBI202Xuất hiện trong 7 đề thi
To convert from ER Diagram to Relational Model, 1-M relationship:
Các lựa chọn
APut key attribute of one-side to M-side
BPut key attribute of M-side to one-side
CGenerate 1 relation, Primary key of this relation combined from two relations
DBuild a table with two columns, one column for each participating entity set's primary key.