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

One or more tables are joined to create a ____.

Virtue

Variable

View

None

2 / 20

What is/are the parameter(s) in DROP TABLE?

PURGE

CASCADE CONSTRAINTS

Schema_name and table_name

All of the above

3 / 20

Primary keys cannot contain ____ values in any field.

Null

Not Null

4 / 20

Tables, views, schemas, or databases can be defined as ________ for events.

Planners

Triggers

Procedures

Cursors

5 / 20

What is the value of the column by default, if the value is left blank?

NULL

NOT NULL

6 / 20

What the column must have while creation?

Datalink

Datatype

Dataset

Database

7 / 20

To modify an Oracle VIEW definition without dropping it, use the ____ statement.

CREATE NOR REPLACE VIEW

CREATE AND REPLACE VIEW

CREATE XOR REPLACE VIEW

CREATE OR REPLACE VIEW

8 / 20

The data ____ is stored in an Oracle database and does not contain any data.

Dependency

Redundancy

Dictionary

None

9 / 20

Oracle automatically creates the SYSTEM tablespace.

True

False

10 / 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

11 / 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

12 / 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

13 / 20

What is the syntax of CREATE TABLE AS?

CREATE TABLE table_name FROM (SELECT*FROM previoustable_name)

CREATE TABLE table_name AS (SELECT*FROM previoustable_name)

CREATE TABLE table_name AT (SELECT*FROM previoustable_name)

CREATE TABLE table_name IN (SELECT*FROM previoustable_name)

14 / 20

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

ALTER

UPDATE

CREATE

NEW

15 / 20

Oracle will ____ the table if there is a referential integrity constraint on table_name that is not specified as CASCADE CONSTRAINTS on the DROP TABLE statement.

Drop

Not drop

Delete

Not delete

16 / 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

17 / 20

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

SGA

PGA

Library cache

Data dictionary

18 / 20

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

Foreign

Composite

Alternate

Primary

19 / 20

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

Sequential

Referential

Relational

Consecutive

20 / 20

Views are stored in Databases?

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!