A relation scheme is in___________ if it is in the 1 NF and if all non-prime attributes are fully functionally on dependent on the relation key(s).
A relation scheme is in___________ if it is in the 1 NF and if all non-prime attributes are fully functionally on dependent on the relation key(s).
The correct option is B Second Normal Form
A relation scheme is in second normal form if it is in the 1 NF and if
all non-prime attributes are fully functionally on dependent on the relation
key.
Second normalform (2NF) is a normal form used in database normalization. 2NF was originally defined by E.F. Codd in 1971.
A relation is in 2NF if it is in 1NF and every non-prime attribute of the
relation is dependent on the whole of every candidate key. A non-prime attribute of a relation is an attribute that is not a part of
any candidate key of the relation.
Functional dependency (FD) is a set of
constraints between two attributes in a relation. Functional dependency says
that if two tuples have same values for attributes.
A relation scheme is in second normal form if it is in the 1 NF and if all non-prime attributes are fully functionally on dependent on the relation key.
Second normalform (2NF) is a normal form used in database normalization. 2NF was originally defined by E.F. Codd in 1971. A relation is in 2NF if it is in 1NF and every non-prime attribute of the relation is dependent on the whole of every candidate key. A non-prime attribute of a relation is an attribute that is not a part of any candidate key of the relation.
Functional dependency (FD) is a set of constraints between two attributes in a relation. Functional dependency says that if two tuples have same values for attributes.
