Database Management Questions and Answers

Software Programming : Database Management QUESTIONS AND ANSWERS :: part3 : 6 to 10

Following Software Programming language Entrance Multiple choice objective type questions and answers will help you in Software Programming 2024 examinations :

6.A super key is any key that uniquely identifies each

Entity uniquely

Object in a table

Table

Structure in a table

Column uniquely.

7.The entity integrity rule requires that

All primary key entries are not unique

A part of the key may be null

Foreign key values do not reference primary key values

Duplicate object values are allowed

All primary key entries are unique.

8.A ____ attribute is an attribute that can be further subdivided to yield additional attributes.

Composite

Simple

Single-valued

Multivalued

Derived.

9.Which of the following statements concerning the primary key is true?

All primary key entries are unique

The primary key may be null

The primary key is not required for all tables

The primary key data does not have to be unique

For every primary key there must be a foreign key.

10.The DBMS allows you to extrapolate information from your data by using #32.The DBMS allows you to extrapolate information from your data by using

Query language

Table generator

Security system

Access control

Program.

More Database Management QUESTIONS AND ANSWERS available in next pages