Oracle Database Management: Intermediate-Level Quiz

Oracle Database Management Quiz

Welcome to the "Oracle Database Management" quiz! This quiz tests your knowledge of key practices like performance tuning, backup and recovery, and security management. Whether preparing for a database role or enhancing your skills, let's dive in!

1 / 20

Which of the following is not true about modifying table columns?

You can increase the number of characters in character columns or the number of digits in numeric columns

You cannot increase or decrease the number of decimal places

You can drop a column at any time

You can add a column at any time as long as it is a NULL column

2 / 20

What is the purpose of the Oracle Instance?

It manages the memory and process structures used by the database

It stores information about the backup and recovery of the database

It provides access to the data stored in the database

It stores information about the users of the database

3 / 20

Which of the following is correct about Oracle?

Oracle was built in 1977

OracleDB is another for it

Oracle is a relational database management system

All of the above

4 / 20

Which of the following is not true of SQL views?

Using the Oracle Database Configuration Assistant

Using the SQL CREATE DATABASE command

Using the Oracle-supplied database creation procedures

None of the above is correct

5 / 20

To see the contents of the SQL*Plus buffer, type:

LIST

CONTENTS

CURRENT

BUFFER

6 / 20

To obtain the structure of an Oracle table, the command to use is:

DESC TABLE [TableName]

STRUCTURE [TableName]

DESCRIBE [TableName]

DESCRIBE STRUCTURE [TableName]

7 / 20

Oracle allows the ORDER BY clause in view definitions. True or False?

True

False

8 / 20

Which of the following is not an Oracle-supported trigger?

INSTEAD OF

BEFORE

AFTER

DURING

9 / 20

Which processes is an instance made of Oracle?

Memory processes

Data processes

Oracle background processes

All of the Mentioned

10 / 20

Which of the following database was designed first for enterprise gridcomputing?

SQL

Google database

Oracle database

MongoDB

11 / 20

After a table has been created, its structure can be modified using the SQL command;

CHANGE TABLE [TableName]

ALTER TABLE [TableName]

UPDATE TABLE [TableName]

MODIFY TABLE [TableName]

12 / 20

Which of the following statements about sequence is not true?

Sequences guarantee valid surrogate key values

NextVal and CurrVal are both sequence methods

A sequence is an object that generates a sequential series of unique numbers

Sequences are most often used to provide values for surrogate keys

13 / 20

Which of the following is not true about modifying table columns?

You can add a column at any time as long as it is a NULL column

You cannot increase or decrease the number of decimal places

You can drop a column at any time

You can increase the number of characters in character columns or the number of digits in numeric columns

14 / 20

Which of the following SQL phrase is not supported by Oracle?

DROP SEQUENCE [SequenceName]

CREATE SEQUENCE [SequenceName]

ON UPDATE CASCADE

ON DELETE CASCADE

15 / 20

Which of the following is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Data Definition Language(DDL)

Data Manipulation Language(DML)

DDL and DML

None of the Mentioned

16 / 20

What is the purpose of the Oracle Data Dictionary?

It stores information about the users of the database

It stores information about the backup and recovery of the database

It stores information about the performance of the database

It stores information about the structure of the database

17 / 20

Which prefixes are available to Oracle triggers?

Neither :new nor :old

:new only

:old only

Both :new and :old

18 / 20

A _______________ is used to logically group data together.

Tablespace

Database

Object

Datafiles

19 / 20

What is the purpose of the Oracle Database?

It manages the memory and process structures used by the database

It provides access to the data stored in the database

It stores and manages the data used by the application

All of the above

20 / 20

What Oracle backup and recover file contains user and system data?

Offline ReDo file

Control file

OnLine ReDo file

Datafile

Your score is

The average score is 0%

Oracle database management covers the core concepts and tasks of maintaining, configuring, and optimizing an Oracle database.

This includes user management, storage configuration, performance tuning, backups, and security settings.

This quiz is essential for database administrators and developers to ensure the database operates efficiently and securely.

All the best!