State true or false: If a relational schema is in _______ NF and A is – McqOptions

MCQOPTIONS

1.	State true or false: If a relational schema is in _______ NF and A is a subset of R and B is also a subset of R then it is that A is a superkey is a trivial multi values dependency.
A.	1
B.	2
C.	3
D.	4
Answer» E.

Discussion

No Comment Found

Related MCQs

The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
A functional dependency f on R is _______ by a set of functional dependencies F on r if every instance of r(R) that satisfies f also satisfies F.
To specify the foreign keys in relations referencing temporal data we need to specify _______
An instance of a relation that satisfies all real world constraints is known as?
The ______ is the one in which the primary key of one relation is used as a normal attribute in another relation.
If K → R then K is said to be the _______ of R
Student(ID, name, dept name, tot_cred)In this query which attribute form the primary key?
A ________ is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.
Which one of the following is a procedural language ?