DBI202Xuất hiện trong 4 đề thi
Given R as a relation, which of the following statements is correct about normalizing data in 3NF form:
Các lựa chọn
AIf R: Has a primary key, no repeating groups, no multivalued attributes/composite attributes
BIf R: Has a primary key, no repeating groups, no multivalued attributes/complex attributes, no partial functional dependencies.
CIf R: Has a primary key, no repeating groups, no multivalued/composite attributes, no transitive dependencies.
DIf R: Has a primary key, no repeating groups, no multivalued attributes/complex attributes, no transitive functional dependencies, no partial functional dependencies.
EIf R: has complete functional dependency.