DBI202Xuất hiện trong 2 đề thi
For the following relations and a Set operation: Employee Name | City | Gender Nguyen Trung Truc | HCM | Male Le Hong Son | HCM | Male Customer Name | City | Gender Nguyen Trung Truc | HCM | Male Tran Tuyet Nhi | HN | Female and Employee ∪ Customer What is the result of the Union operation?
Các lựa chọn
AName | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
BName | City | Gender
Nguyen Trung Truc | HCM | Male
Tran Tuyet Nhi | HN | Female
CName | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
Nguyen Trung Truc | HCM | Male
Tran Tuyet Nhi | HN | Female
DName | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
Tran Tuyet Nhi | HN | Female