JFE301Xuất hiện trong 1 đề thi
Which of the following appropriately describes a domain (defined area), a term used for relational databases?
Các lựa chọn
AIt is a relationship derived by applying the relational operations to the basic relationship.
BIt is a set of values that attributes can hold.
CIt is a specification for copying the real world to a database.
DIt is the general term for data insertion, updating, deletion, and search in a database.