Oracle Tables and Views: Beginners-Level Quiz

Oracle Tables and Views

Welcome to the "Oracle Tables and Views" quiz! In this quiz, you'll explore fundamental concepts related to database tables, which store structured data, and views, which provide virtual representations of that data. Delve into their creation, management, and practical applications, as well as the differences between tables and views. Test your knowledge and enhance your understanding of how to effectively organize and access data within an Oracle Database. Let's get started!

1 / 20

You can delete a VIEW by using the ____ statement

DELETE DROP VIEW

DROP VIEW

DELETE VIEW

DROP DELETE VIEW

2 / 20

You can add a datafile to a tablespace by using the ALTER TABLESPACE ADD DATAFILE SIZE; statement. True or False?

True

False

3 / 20

Primary keys can only be found in ____ table at a time.

4 / 20

The ____________ contains a set of tables and views that Oracle uses as a reference to the database.

SGA

PGA

Library cache

Data dictionary

5 / 20

While creating a table, the column should be specified as either NULL or NOT NULL. True or False?

True

False

6 / 20

What is the syntax to create view?

CREATE AS view_name VIEW

CREATE AS view_name NEW

CREATE VIEW view_name AS

CREATE NEW view_name AS

7 / 20

Primary keys cannot contain ____ values in any field.

Null

Not Null

8 / 20

Views are ____ tables that don't exist physically in Oracle.

Virtual

Real

Both A and B

None of the above

9 / 20

How many tables may be included with a join?

All of the above

10 / 20

____ keys are single fields or combinations of fields that contain unique information about the record.

Foreign

Composite

Alternate

Primary

11 / 20

Oracle automatically creates the SYSTEM tablespace.

True

False

12 / 20

Views are also called as ____.

Virtual tables

Complex tables

Simple tables

Actual Tables

13 / 20

One or more tables are joined to create a ____.

Virtue

Variable

View

None

14 / 20

A new table is created in an Oracle database using the ____ TABLE statement.

ALTER

UPDATE

CREATE

NEW

15 / 20

In addition to eliminating all ____ integrity constraints, CASCADE CONSTRAINTS will also drop all other constraints.

Sequential

Referential

Relational

Consecutive

16 / 20

What is the syntax of creating global temporary tables?

CREATE GLOBAL TEMPORARY TABLE

CREATE TEMPORARY TABLE

CREATE LOCAL TEMPORARY TABLE

None of the above

17 / 20

The main difference between temporary tables and ordinary tables is that temporary tables cannot have ____ keys related to other tables.

Composite

Foreign

Alternate

Primary

18 / 20

In relational databases, the joining of two tables is?

Combination of union and filtered Cartesian product

Cartesian product always

Combination of selection and filtered Cartesian product

Combination of projection and filtered Cartesian product

19 / 20

The program compares two columns from different tables and combines pairs of rows containing the same row from both tables, provided that the ____ condition holds.

Non-Join

Minus

Join

Addition

20 / 20

Not all data in a database is stored in a table to include user data and the Data Dictionary. True or False?

True

False

Your score is

The average score is 0%

Oracle tables and views focus on the foundational concepts of storing and presenting data in Oracle databases.

This includes creating, managing, and modifying tables (the primary data storage structures) and views (virtual tables derived from queries).

This quiz is designed for those wanting to learn how to structure and retrieve data effectively and use views for improved query performance and security.

Good luck!