EXERCISE_RELATIONALDATABASE

EXERCISE_RELATIONALDATABASE

University

10 Qs

quiz-placeholder

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EXERCISE_RELATIONALDATABASE

EXERCISE_RELATIONALDATABASE

Assessment

Quiz

Computers

University

Practice Problem

Medium

Used 4+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Below are the type of key(s) available in RDBM EXCEPT

Superkey

Candidate key

Primary key

Composer key

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Below are the characteristics of a Relational Table EXCEPT

A table is perceived as a two-dimensional structure composed of rows and columns.

Each table row(tuple) represents a single entity occurrence within the entity set.

Each table column represents an attribute.

All values in a column may have different data format.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In the table above, which one is Primary Key?

firstName

lastName

StudentID

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The order of rows and columns is important to the DBMS.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the heart of the Relational Database Model?

A collection of rows

A collection of columns

A collection of attributes

A collection of tables

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All Primary Key entries are unique, and no part of a primary key may be null

Entity Integrity

Referrential Integrity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Complete the sentence below.

A _____ is a row in a database table. This is also known as a record.

Tuple

Degree

Relation

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