Q. A table has fields F1, F2, F3, F4, and F5, with the following functional dependencies:

F1->F3
F2->F4
(F1,F2)->F5

in terms of normalization, this table is in

View solution

Q. Consider the following functional dependencies in a database.

Date_of_Birth->Age Age->Eligibility

Name->Roll_number Roll_number->Name

Course_number->Course_name Course_number->Instructor

(Roll_number, Course_number)->Grade

The relation (Roll_number, Name, Date_of_birth, Age) is

View solution

Q. The relation schema Student_Performance (name, courseNo, rollNo, grade) has the following FDs:

name,courseNo->grade
rollNo,courseNo->grade
name->rollNo
rollNo->name

The highest normal form of this relation scheme is

View solution

Q. The relation EMPDT1 is defined with attributes empcode(unique), name, street, city, state, and pincode. For any pincode,there is only one city and state. Also, for any given street, city and state, there is just one pincode. In normalization terms EMPDT1 is a relation in

View solution

Q. Which one of the following statements if FALSE?

View solution

Q. A relation is in ____________ if an attribute of a composite key is dependent on an attribute of other composite key.

View solution

Q. What are the desirable properties of a decomposition ?

View solution

Q. R (A,B,C,D) is a relation. Which of the following does not have a lossless join dependency preserving BCNF decomposition.

View solution

Q. The algorithm that takes a set of dependencies and adds one schema at a time, instead of decomposing the initial schema repeatedly is

View solution

Q. The functional dependency can be tested easily on the materialized view, using the constraints ____________.

View solution